mcs/class/System.XML/System.Xml/XmlDocumentFragment.cs

   1 //
   2 // System.Xml.XmlDocumentFragment
   3 //
   4 // Author:
   5 //   Duncan Mak  (duncan@ximian.com)
   6 //   Atsushi Enomoto  (ginga@kit.hi-ho.ne.jp)
   7 //
   8 // (C), Ximian, Inc
   9 // (C)2002 Atsushi Enomoto
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31 using System;
  32 using System.IO;
  33 using System.Text;
  34 using System.Xml.XPath;
  35
  36 namespace System.Xml
  37 {
  38         public class XmlDocumentFragment : XmlNode
  39         {
  40
  41                 #region Constructor
  42
  43                 protected internal XmlDocumentFragment (XmlDocument doc)
  44                         : base (doc)
  45                 {
  46                 }
  47
  48                 #endregion
  49
  50                 #region Properties
  51
  52                 public override string InnerXml {
  53                         set {
  54                                 // Copied from XmlElement.InnerXml (in the meantime;-))
  55                                 for (int i = 0; i < ChildNodes.Count; i++)
  56                                         this.RemoveChild (ChildNodes [i]);
  57
  58                                 // I hope there are any well-performance logic...
  59                                 XmlNamespaceManager nsmgr = this.ConstructNamespaceManager ();
  60                                 XmlParserContext ctx = new XmlParserContext (OwnerDocument.NameTable, nsmgr,
  61                                         OwnerDocument.DocumentType != null ? OwnerDocument.DocumentType.DTD : null,
  62                                         BaseURI, XmlLang, XmlSpace, null);
  63                                 XmlTextReader xmlReader = new XmlTextReader (value, XmlNodeType.Element, ctx);
  64                                 xmlReader.XmlResolver = OwnerDocument.Resolver;
  65
  66                                 do {
  67                                         XmlNode n = OwnerDocument.ReadNode (xmlReader);
  68                                         if(n == null) break;
  69                                         AppendChild (n);
  70                                 } while (true);
  71                         }
  72                         get {
  73                                 StringBuilder sb = new StringBuilder ();
  74                                 for (int i = 0; i < ChildNodes.Count; i++)
  75                                         sb.Append (ChildNodes [i].OuterXml);
  76                                 return sb.ToString ();
  77                         }
  78                 }
  79
  80                 public override string LocalName {
  81                         get { return "#document-fragment"; }
  82                 }
  83
  84
  85                 public override string Name {
  86                         get { return "#document-fragment"; }
  87                 }
  88
  89                 public override XmlNodeType NodeType {
  90                         get { return XmlNodeType.DocumentFragment; }
  91                 }
  92
  93                 public override XmlDocument OwnerDocument {
  94                         get { return base.OwnerDocument; }
  95                 }
  96
  97                 public override XmlNode ParentNode {
  98                         get { return null; } // it's always null here.
  99                 }
 100
 101                 internal override XPathNodeType XPathNodeType
 102                 {
 103                         get { return XPathNodeType.Root; }
 104                 }
 105                 #endregion
 106
 107                 #region Methods
 108                 public override XmlNode CloneNode (bool deep)
 109                 {
 110                         if (deep) { // clone document + child nodes
 111                                 XmlNode node = FirstChild;
 112
 113                                 while ((node != null) && (node.HasChildNodes)) {
 114                                         AppendChild (node.NextSibling.CloneNode (false));
 115                                         node = node.NextSibling;
 116                                 }
 117
 118                                 return node;
 119                         } else
 120                                 return new XmlDocumentFragment (OwnerDocument);
 121                 }
 122
 123                 public override void WriteContentTo (XmlWriter w)
 124                 {
 125                         for (int i = 0; i < ChildNodes.Count; i++)
 126                                 ChildNodes [i].WriteContentTo (w);
 127                 }
 128
 129                 public override void WriteTo (XmlWriter w)
 130                 {
 131                         for (int i = 0; i < ChildNodes.Count; i++)
 132                                 ChildNodes [i].WriteTo (w);
 133                 }
 134
 135                 #endregion
 136         }
 137 }