mcs/class/System.Web/System.Web.UI.WebControls/LoginName.cs

   1 //
   2 // System.Web.UI.WebControls.LoginName class
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2005 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
  30 using System.ComponentModel;
  31 using System.Security.Permissions;
  32
  33 namespace System.Web.UI.WebControls {
  34
  35         // CAS
  36         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  37         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  38         // attributes
  39         [Bindable (false)]
  40         [DefaultProperty ("FormatString")]
  41         [Designer ("System.Web.UI.Design.WebControls.LoginNameDesigner," + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  42         public class LoginName : WebControl
  43         {
  44                 public LoginName ()
  45                 {
  46                 }
  47
  48                 [DefaultValue ("{0}")]
  49                 [Localizable (true)]
  50                 public virtual string FormatString {
  51                         get {
  52                                 object o = ViewState ["FormatString"];
  53                                 return (o == null) ? "{0}" : (string)o;
  54                         }
  55                         set {
  56                                 if (value == null)
  57                                         ViewState.Remove ("FormatString");
  58                                 else
  59                                         ViewState ["FormatString"] = value;
  60                         }
  61                 }
  62                 public override bool SupportsDisabledAttribute {
  63                         get { return RenderingCompatibilityLessThan40; }
  64                 }
  65                 protected internal override void Render (HtmlTextWriter writer)
  66                 {
  67                         if (!Anonymous) {
  68                                 RenderBeginTag (writer);
  69                                 RenderContents (writer);
  70                                 RenderEndTag (writer);
  71                         }
  72                 }
  73
  74                 public override void RenderBeginTag (HtmlTextWriter writer)
  75                 {
  76                         if (!Anonymous)
  77                                 base.RenderBeginTag (writer);
  78                 }
  79
  80                 protected internal override void RenderContents (HtmlTextWriter writer)
  81                 {
  82                         if (!Anonymous) {
  83                                 string format = (string) ViewState ["FormatString"];
  84                                 if ((format == null) || (format.Length == 0))
  85                                         writer.Write (User);
  86                                 else
  87                                         writer.Write (format, User);
  88                         }
  89                 }
  90
  91                 public override void RenderEndTag (HtmlTextWriter writer)
  92                 {
  93                         if (!Anonymous)
  94                                 base.RenderEndTag (writer);
  95                 }
  96
  97                 // private stuff
  98
  99                 bool Anonymous {
 100                         get { return (User.Length == 0); }
 101                 }
 102
 103                 string User {
 104                         get {
 105                                 if ((Page == null) || (Page.User == null))
 106                                         return String.Empty;
 107                                 return Page.User.Identity.Name;
 108                         }
 109                 }
 110         }
 111 }
 112