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

   1 //\r
   2 // System.Xml.XmlDocumentFragment\r
   3 //\r
   4 // Author:\r
   5 //   Duncan Mak  (duncan@ximian.com)\r
   6 //   Atsushi Enomoto  (ginga@kit.hi-ho.ne.jp)\r
   7 //\r
   8 // (C), Ximian, Inc\r
   9 // (C)2002 Atsushi Enomoto\r
  10 using System;\r
  11 using System.IO;\r
  12 using System.Text;\r
  13 using System.Xml.XPath;\r
  14 \r
  15 namespace System.Xml\r
  16 {\r
  17         public class XmlDocumentFragment : XmlNode\r
  18         {\r
  19                 #region Fields\r
  20 \r
  21                 private XmlLinkedNode lastLinkedChild;\r
  22 \r
  23                 #endregion\r
  24 \r
  25                 #region Constructor\r
  26 \r
  27                 protected internal XmlDocumentFragment (XmlDocument doc)\r
  28                         : base (doc)\r
  29                 {\r
  30                 }\r
  31                 \r
  32                 #endregion\r
  33 \r
  34                 #region Properties\r
  35 \r
  36                 public override string InnerXml {\r
  37                         set {\r
  38                                 // Copied from XmlElement.InnerXml (in the meantime;-))\r
  39                                 foreach(XmlNode n in ChildNodes)\r
  40                                 {\r
  41                                         this.RemoveChild (n);\r
  42                                 }                 \r
  43 \r
  44                                 // I hope there are any well-performance logic...\r
  45                                 XmlNamespaceManager nsmgr = this.ConstructNamespaceManager ();\r
  46                                 XmlParserContext ctx = new XmlParserContext (OwnerDocument.NameTable, nsmgr,
  47                                         OwnerDocument.DocumentType != null ? OwnerDocument.DocumentType.DTD : null,
  48                                         BaseURI, XmlLang, XmlSpace, null);
  49                                 XmlTextReader xmlReader = new XmlTextReader (value, XmlNodeType.Element, ctx);\r
  50                                 xmlReader.XmlResolver = OwnerDocument.Resolver;\r
  51 \r
  52                                 do {\r
  53                                         XmlNode n = OwnerDocument.ReadNode (xmlReader);\r
  54                                         if(n == null) break;\r
  55                                         AppendChild (n);\r
  56                                 } while (true);\r
  57                         }\r
  58                         get {\r
  59                                 StringBuilder sb = new StringBuilder ();\r
  60                                 foreach(XmlNode n in ChildNodes)\r
  61                                         sb.Append (n.OuterXml);\r
  62                                 return sb.ToString ();\r
  63                         }\r
  64                 }\r
  65                 \r
  66                 public override string LocalName {\r
  67                         get { return "#document-fragment"; }\r
  68                 }\r
  69 \r
  70 \r
  71                 public override string Name { \r
  72                         get { return "#document-fragment"; }\r
  73                 }\r
  74 \r
  75                 public override XmlNodeType NodeType {\r
  76                         get { return XmlNodeType.DocumentFragment; }\r
  77                 }\r
  78 \r
  79                 public override XmlDocument OwnerDocument {\r
  80                         get { return base.OwnerDocument; }\r
  81                 }\r
  82 \r
  83                 public override XmlNode ParentNode {\r
  84                         get { return null; } // it's always null here.\r
  85                 }\r
  86 \r
  87                 // It is really not a type of XmlLinkedNode,\r
  88                 //   but I copied this way from XmlElement. It looks good.\r
  89                 internal override XmlLinkedNode LastLinkedChild\r
  90                 {\r
  91                         get { return lastLinkedChild; }\r
  92                         set { lastLinkedChild = value; }\r
  93                 }\r
  94 \r
  95                 internal override XPathNodeType XPathNodeType\r
  96                 {\r
  97                         get { return XPathNodeType.Root; }\r
  98                 }\r
  99                 #endregion\r
 100 \r
 101                 #region Methods         \r
 102                 public override XmlNode CloneNode (bool deep)\r
 103                 {\r
 104                         if (deep) { // clone document + child nodes\r
 105                                 XmlNode node = FirstChild;\r
 106 \r
 107                                 while ((node != null) && (node.HasChildNodes)) {\r
 108                                         AppendChild (node.NextSibling.CloneNode (false));\r
 109                                         node = node.NextSibling;\r
 110                                 }\r
 111 \r
 112                                 return node;\r
 113                         } else\r
 114                                 return new XmlDocumentFragment (OwnerDocument);\r
 115                 }\r
 116 \r
 117                 public override void WriteContentTo (XmlWriter w)\r
 118                 {\r
 119                         foreach(XmlNode n in ChildNodes)\r
 120                                 n.WriteContentTo (w);\r
 121                 }\r
 122 \r
 123                 public override void WriteTo (XmlWriter w)\r
 124                 {\r
 125                         foreach(XmlNode n in ChildNodes)\r
 126                                 n.WriteTo (w);\r
 127                 }\r
 128 \r
 129                 #endregion\r
 130         }\r
 131 }\r