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, IHasXmlChildNode
  39         {
  40                 XmlLinkedNode lastLinkedChild;
  41
  42                 #region Constructor
  43
  44                 protected internal XmlDocumentFragment (XmlDocument ownerDocument)
  45                         : base (ownerDocument)
  46                 {
  47                 }
  48
  49                 #endregion
  50
  51                 #region Properties
  52
  53                 XmlLinkedNode IHasXmlChildNode.LastLinkedChild {
  54                         get { return lastLinkedChild; }
  55                         set { lastLinkedChild = value; }
  56                 }
  57
  58                 public override string InnerXml {
  59                         set {
  60                                 // Copied from XmlElement.InnerXml (in the meantime;-))
  61                                 for (int i = 0; i < ChildNodes.Count; i++)
  62                                         this.RemoveChild (ChildNodes [i]);
  63
  64                                 // I hope there are any well-performance logic...
  65                                 XmlNamespaceManager nsmgr = this.ConstructNamespaceManager ();
  66                                 XmlParserContext ctx = new XmlParserContext (OwnerDocument.NameTable, nsmgr,
  67                                         OwnerDocument.DocumentType != null ? OwnerDocument.DocumentType.DTD : null,
  68                                         BaseURI, XmlLang, XmlSpace, null);
  69                                 XmlTextReader xmlReader = new XmlTextReader (value, XmlNodeType.Element, ctx);
  70                                 xmlReader.XmlResolver = OwnerDocument.Resolver;
  71
  72                                 do {
  73                                         XmlNode n = OwnerDocument.ReadNode (xmlReader);
  74                                         if(n == null) break;
  75                                         AppendChild (n);
  76                                 } while (true);
  77                         }
  78                         get {
  79                                 StringBuilder sb = new StringBuilder ();
  80                                 for (int i = 0; i < ChildNodes.Count; i++)
  81                                         sb.Append (ChildNodes [i].OuterXml);
  82                                 return sb.ToString ();
  83                         }
  84                 }
  85
  86                 public override string LocalName {
  87                         get { return "#document-fragment"; }
  88                 }
  89
  90
  91                 public override string Name {
  92                         get { return "#document-fragment"; }
  93                 }
  94
  95                 public override XmlNodeType NodeType {
  96                         get { return XmlNodeType.DocumentFragment; }
  97                 }
  98
  99                 public override XmlDocument OwnerDocument {
 100                         get { return base.OwnerDocument; }
 101                 }
 102
 103                 public override XmlNode ParentNode {
 104                         get { return null; } // it's always null here.
 105                 }
 106
 107                 internal override XPathNodeType XPathNodeType
 108                 {
 109                         get { return XPathNodeType.Root; }
 110                 }
 111                 #endregion
 112
 113                 #region Methods
 114                 public override XmlNode CloneNode (bool deep)
 115                 {
 116                         if (deep) { // clone document + child nodes
 117                                 XmlNode node = FirstChild;
 118
 119                                 while ((node != null) && (node.HasChildNodes)) {
 120                                         AppendChild (node.NextSibling.CloneNode (false));
 121                                         node = node.NextSibling;
 122                                 }
 123
 124                                 return node;
 125                         } else
 126                                 return new XmlDocumentFragment (OwnerDocument);
 127                 }
 128
 129                 public override void WriteContentTo (XmlWriter w)
 130                 {
 131                         for (int i = 0; i < ChildNodes.Count; i++)
 132                                 ChildNodes [i].WriteContentTo (w);
 133                 }
 134
 135                 public override void WriteTo (XmlWriter w)
 136                 {
 137                         for (int i = 0; i < ChildNodes.Count; i++)
 138                                 ChildNodes [i].WriteTo (w);
 139                 }
 140
 141                 #endregion
 142         }
 143 }