mcs/class/System.Web/System.Web.UI/ResourceBasedLiteralControl.cs

   1 //
   2 // System.Web.UI.ResourceBasedLiteralControl.cs
   3 //
   4 // Author:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // Copyright (C) 2009 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.Runtime.InteropServices;
  30 using System.Text;
  31
  32 namespace System.Web.UI
  33 {
  34         class ResourceBasedLiteralControl : LiteralControl
  35         {
  36                 IntPtr ptr;
  37                 int length;
  38
  39                 public ResourceBasedLiteralControl (IntPtr ptr, int length)
  40                 {
  41                         EnableViewState = false;
  42                         AutoID = false;
  43                         this.ptr = ptr;
  44                         this.length = length;
  45                 }
  46
  47                 public override string Text {
  48                         get {
  49                                 if (length == -1)
  50                                         return base.Text;
  51
  52                                 byte [] bytes = new byte [length];
  53                                 Marshal.Copy (ptr, bytes, 0, length);
  54                                 return Encoding.UTF8.GetString (bytes);
  55                         }
  56                         set {
  57                                 length = -1;
  58                                 base.Text = value;
  59                         }
  60                 }
  61
  62                 protected internal override void Render (HtmlTextWriter writer)
  63                 {
  64                         if (length == -1) {
  65                                 writer.Write (base.Text);
  66                                 return;
  67                         }
  68
  69                         HttpWriter hw = writer.GetHttpWriter ();
  70                         if (hw == null || hw.Response.ContentEncoding.CodePage != 65001) {
  71                                 byte [] bytes = new byte [length];
  72                                 Marshal.Copy (ptr, bytes, 0, length);
  73                                 writer.Write (Encoding.UTF8.GetString (bytes));
  74                                 bytes = null;
  75                                 return;
  76                         }
  77
  78                         hw.WriteUTF8Ptr (ptr, length);
  79                 }
  80         }
  81 }
  82