X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mcs%2Fclass%2FSystem.XML%2FSystem.Xml%2FXmlLinkedNode.cs;h=01a9b0a8444011809cd7be34bc715d74b3a8740c;hb=8772453d656bea7fe2a6ae401203e86588ddb81b;hp=e1675724e6ccf77793c95c70718ef6d261bfdc44;hpb=3ecbf47486b7484bad6ffeb1d1e4c574597c231e;p=mono.git

diff --git a/mcs/class/System.XML/System.Xml/XmlLinkedNode.cs b/mcs/class/System.XML/System.Xml/XmlLinkedNode.cs
index e1675724e6c..01a9b0a8444 100644
--- a/mcs/class/System.XML/System.Xml/XmlLinkedNode.cs
+++ b/mcs/class/System.XML/System.Xml/XmlLinkedNode.cs
@@ -1,23 +1,68 @@
+//
+// System.Xml.XmlLinkedNode
+//
+// Authors:
+//   Jason Diamond <jason@injektilo.org>
+//   Kral Ferch <kral_ferch@hotmail.com>
+//
+// (C) 2002 Jason Diamond, Kral Ferch
+//
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
 using System;
 
 namespace System.Xml
 {
 	public abstract class XmlLinkedNode : XmlNode
 	{
+		#region Fields
+
 		XmlLinkedNode nextSibling;
 
-		#region Constructors
+		#endregion
 
-		protected internal XmlLinkedNode(XmlDocument doc) : base(doc) { }
+		#region Constructors
+		internal XmlLinkedNode(XmlDocument doc) : base(doc) { }
 
 		#endregion
 
 		#region Properties
+		internal bool IsRooted {
+			get {
+				for (XmlNode n = ParentNode; n != null; n = n.ParentNode)
+					if (n.NodeType == XmlNodeType.Document)
+						return true;
+				return false;
+			}
+		}
 
 		public override XmlNode NextSibling
 		{
 			get {
-				if (Object.ReferenceEquals(nextSibling, ParentNode.LastLinkedChild.NextLinkedSibling) == false) {
+				if(ParentNode == null) {
+					return null;
+				}
+				else if (Object.ReferenceEquals(nextSibling, ParentNode.LastLinkedChild.NextLinkedSibling) == false) {
 					return nextSibling;
 				}
 				else {
@@ -32,15 +77,22 @@ namespace System.Xml
 			set { nextSibling = value; }
 		}
 
-		[MonoTODO]
 		public override XmlNode PreviousSibling
 		{
 			get {
-				throw new NotImplementedException ();
+				if (ParentNode != null) {
+					XmlNode node = ParentNode.FirstChild;
+					if (node != this) {
+						do {
+							if (node.NextSibling == this)
+								return node;
+						} while ((node = node.NextSibling) != null);
+					}					
+				}
+				return null;
 			}
 		}
 
 		#endregion
-
 	}
-}
\ No newline at end of file
+}