implementing XmlElement.SetAttributeNode(localName, namespaceURI) and
[mono.git] / mcs / class / System.XML / System.Xml / XmlNode.cs
index cac9cc9c9c542899481c06c02a06a288c4e78792..d4d39a77aef518963f4a3e34284010eeb8e3f7b9 100644 (file)
@@ -9,6 +9,8 @@
 
 using System;
 using System.Collections;
+using System.IO;
+using System.Text;
 using System.Xml.XPath;
 
 namespace System.Xml
@@ -16,11 +18,6 @@ namespace System.Xml
        public abstract class XmlNode : ICloneable, IEnumerable, IXPathNavigable
        {
                #region Fields
-               ///////////////////////////////////////////////////////////////////////
-               //
-               //      Fields
-               //
-               ///////////////////////////////////////////////////////////////////////
 
                XmlDocument ownerDocument;
                XmlNode parentNode;
@@ -28,13 +25,8 @@ namespace System.Xml
                #endregion
 
                #region Constructors
-               ///////////////////////////////////////////////////////////////////////
-               //
-               //      Constructors
-               //
-               ///////////////////////////////////////////////////////////////////////
 
-               protected internal XmlNode(XmlDocument ownerDocument)
+               internal XmlNode (XmlDocument ownerDocument)
                {
                        this.ownerDocument = ownerDocument;
                }
@@ -42,26 +34,20 @@ namespace System.Xml
                #endregion
 
                #region Properties
-               ///////////////////////////////////////////////////////////////////////
-               //
-               //      Properties
-               //
-               ///////////////////////////////////////////////////////////////////////
 
                public virtual XmlAttributeCollection Attributes
                {
                        get { return null; }
                }
 
-               [MonoTODO]
                public virtual string BaseURI
                {
-                       get { throw new NotImplementedException (); }
+                       get { return ParentNode.BaseURI; }
                }
 
                public virtual XmlNodeList ChildNodes {
                        get {
-                               return new XmlNodeListChildren(LastLinkedChild);
+                               return new XmlNodeListChildren(this);
                        }
                }
 
@@ -82,31 +68,72 @@ namespace System.Xml
 
                [MonoTODO]
                public virtual string InnerText {
-                       get { throw new NotImplementedException (); }
+                       get {
+                               StringBuilder builder = new StringBuilder ();
+                               AppendChildValues (this, builder);
+                               return builder.ToString ();
+                       }
+
                        set { throw new NotImplementedException (); }
                }
 
-               [MonoTODO]
+               private void AppendChildValues (XmlNode parent, StringBuilder builder)
+               {
+                       XmlNode node = parent.FirstChild;
+
+                       while (node != null) {
+                               if (node.NodeType == XmlNodeType.Text)
+                                       builder.Append (node.Value);
+                               AppendChildValues (node, builder);
+                               node = node.NextSibling;
+                       }
+               }
+
+               [MonoTODO("Setter.")]
                public virtual string InnerXml {
-                       get { throw new NotImplementedException (); }
+                       get {
+                               StringWriter sw = new StringWriter ();
+                               XmlTextWriter xtw = new XmlTextWriter (sw);
+
+                               WriteContentTo(xtw);
+
+                               return sw.GetStringBuilder().ToString();
+                       }
+
                        set { throw new NotImplementedException (); }
                }
 
-               [MonoTODO]
                public virtual bool IsReadOnly {
-                       get { throw new NotImplementedException (); }
+                       get { return false; }
                }
 
-               [MonoTODO]
                [System.Runtime.CompilerServices.IndexerName("Item")]
                public virtual XmlElement this [string name] {
-                       get { throw new NotImplementedException (); }
+                       get { 
+                               foreach (XmlNode node in ChildNodes) {
+                                       if ((node.NodeType == XmlNodeType.Element) &&
+                                           (node.Name == name)) {
+                                               return (XmlElement) node;
+                                       }
+                               }
+
+                               return null;
+                       }
                }
 
-               [MonoTODO]
                [System.Runtime.CompilerServices.IndexerName("Item")]
                public virtual XmlElement this [string localname, string ns] {
-                       get { throw new NotImplementedException (); }
+                       get { 
+                               foreach (XmlNode node in ChildNodes) {
+                                       if ((node.NodeType == XmlNodeType.Element) &&
+                                           (node.LocalName == localname) && 
+                                           (node.NamespaceURI == ns)) {
+                                               return (XmlElement) node;
+                                       }
+                               }
+
+                               return null;
+                       }
                }
 
                public virtual XmlNode LastChild {
@@ -118,27 +145,29 @@ namespace System.Xml
                        set { }
                }
 
-               [MonoTODO]
                public abstract string LocalName { get; }
 
-               [MonoTODO]
                public abstract string Name     { get; }
 
-               [MonoTODO]
                public virtual string NamespaceURI {
-                       get { throw new NotImplementedException (); }
+                       get { return String.Empty; }
                }
 
                public virtual XmlNode NextSibling {
                        get { return null; }
                }
 
-               [MonoTODO]
                public abstract XmlNodeType NodeType { get;     }
 
-               [MonoTODO]
                public virtual string OuterXml {
-                       get { throw new NotImplementedException (); }
+                       get {
+                               StringWriter sw = new StringWriter ();
+                               XmlTextWriter xtw = new XmlTextWriter (sw);
+
+                               WriteTo(xtw);
+
+                               return sw.GetStringBuilder().ToString();
+                       }
                }
 
                public virtual XmlDocument OwnerDocument {
@@ -149,40 +178,53 @@ namespace System.Xml
                        get { return parentNode; }
                }
 
-               [MonoTODO]
                public virtual string Prefix {
-                       get { throw new NotImplementedException (); }
-                       set { throw new NotImplementedException (); }
+                       get { return String.Empty; }
+                       set {}
                }
 
                public virtual XmlNode PreviousSibling {
                        get { return null; }
                }
 
-               [MonoTODO]
                public virtual string Value {
-                       get { throw new NotImplementedException (); }
-                       set { throw new NotImplementedException (); }
+                       get { return null; }
+                       set { throw new InvalidOperationException ("This node does not have a value"); }
                }
 
                #endregion
 
                #region Methods
-               ///////////////////////////////////////////////////////////////////////
-               //
-               //      Methods
-               //
-               ///////////////////////////////////////////////////////////////////////
 
                public virtual XmlNode AppendChild (XmlNode newChild)
                {
-                       if ((NodeType == XmlNodeType.Document) || (NodeType == XmlNodeType.Element)) {
-                               LastLinkedChild = (XmlLinkedNode) newChild;
-                               return LastChild;
-                       }
-                       else {
+                       XmlDocument ownerDoc = (NodeType == XmlNodeType.Document) ? (XmlDocument)this : OwnerDocument;
+
+                       ownerDoc.onNodeInserting (newChild, this);
+
+                       if (NodeType == XmlNodeType.Document || NodeType == XmlNodeType.Element || NodeType == XmlNodeType.Attribute) {
+                               
+                               if (newChild.OwnerDocument != ownerDoc)
+                                       throw new ArgumentException ("Can't append a node created by another document.");
+
+                               XmlLinkedNode newLinkedChild = (XmlLinkedNode) newChild;
+                               XmlLinkedNode lastLinkedChild = LastLinkedChild;
+
+                               newLinkedChild.parentNode = this;
+                               
+                               if (lastLinkedChild != null) {
+                                       newLinkedChild.NextLinkedSibling = lastLinkedChild.NextLinkedSibling;
+                                       lastLinkedChild.NextLinkedSibling = newLinkedChild;
+                               } else
+                                       newLinkedChild.NextLinkedSibling = newLinkedChild;
+                               
+                               LastLinkedChild = newLinkedChild;
+
+                               ownerDoc.onNodeInserted (newChild, newChild.ParentNode);
+
+                               return newChild;
+                       } else
                                throw new InvalidOperationException();
-                       }
                }
 
                [MonoTODO]
@@ -196,13 +238,12 @@ namespace System.Xml
                [MonoTODO]
                public XPathNavigator CreateNavigator ()
                {
-                       throw new NotImplementedException ();
+                       return new XmlDocumentNavigator(this);
                }
 
-               [MonoTODO]
                public IEnumerator GetEnumerator ()
                {
-                       throw new NotImplementedException ();
+                       return new XmlNodeListChildren(this).GetEnumerator();
                }
 
                [MonoTODO]
@@ -253,13 +294,44 @@ namespace System.Xml
 
                public virtual void RemoveAll ()
                {
+                       XmlDocument ownerDoc = (NodeType == XmlNodeType.Document) ? (XmlDocument)this : OwnerDocument;
+
+                       ownerDoc.onNodeRemoving (this, this.ParentNode);
                        LastLinkedChild = null;
+                       ownerDoc.onNodeRemoved (this, this.ParentNode);
                }
 
-               [MonoTODO]
                public virtual XmlNode RemoveChild (XmlNode oldChild)
                {
-                       throw new NotImplementedException ();
+                       OwnerDocument.onNodeRemoving (oldChild, oldChild.ParentNode);
+
+                       if (NodeType == XmlNodeType.Document || NodeType == XmlNodeType.Element || NodeType == XmlNodeType.Attribute) 
+                       {
+                               if (IsReadOnly)
+                                       throw new ArgumentException();
+
+                               if (Object.ReferenceEquals(LastLinkedChild, LastLinkedChild.NextLinkedSibling) && Object.ReferenceEquals(LastLinkedChild, oldChild))
+                                       LastLinkedChild = null;
+                               else {
+                                       XmlLinkedNode oldLinkedChild = (XmlLinkedNode)oldChild;
+                                       XmlLinkedNode beforeLinkedChild = LastLinkedChild;
+                                       
+                                       while (!Object.ReferenceEquals(beforeLinkedChild.NextLinkedSibling, LastLinkedChild) && !Object.ReferenceEquals(beforeLinkedChild.NextLinkedSibling, oldLinkedChild))
+                                               beforeLinkedChild = beforeLinkedChild.NextLinkedSibling;
+
+                                       if (!Object.ReferenceEquals(beforeLinkedChild.NextLinkedSibling, oldLinkedChild))
+                                               throw new ArgumentException();
+
+                                       beforeLinkedChild.NextLinkedSibling = oldLinkedChild.NextLinkedSibling;
+                                       oldLinkedChild.NextLinkedSibling = null;
+                                }
+
+                               OwnerDocument.onNodeRemoved (oldChild, oldChild.ParentNode);
+
+                               return oldChild;
+                       } 
+                       else
+                               throw new ArgumentException();
                }
 
                [MonoTODO]
@@ -268,28 +340,43 @@ namespace System.Xml
                        throw new NotImplementedException ();
                }
 
-               [MonoTODO]
-               public virtual XmlNodeList SelectNodes (string xpath)
+               public XmlNodeList SelectNodes (string xpath)
                {
-                       throw new NotImplementedException ();
+                       return SelectNodes (xpath, null);
                }
 
                [MonoTODO]
-               public virtual XmlNodeList SelectNodes (string xpath, XmlNamespaceManager nsmgr)
+               public XmlNodeList SelectNodes (string xpath, XmlNamespaceManager nsmgr)
                {
-                       throw new NotImplementedException ();
+                       XPathNavigator nav = CreateNavigator ();
+                       XPathExpression expr = nav.Compile (xpath);
+                       if (nsmgr != null)
+                               expr.SetContext (nsmgr);
+                       XPathNodeIterator iter = nav.Select (expr);
+                       ArrayList rgNodes = new ArrayList ();
+                       while (iter.MoveNext ())
+                       {
+                               rgNodes.Add (((XmlDocumentNavigator) iter.Current).Node);
+                       }
+                       return new XmlNodeArrayList (rgNodes);
                }
 
-               [MonoTODO]
-               public virtual XmlNode SelectSingleNode (string xpath)
+               public XmlNode SelectSingleNode (string xpath)
                {
-                       throw new NotImplementedException ();
+                       return SelectSingleNode (xpath, null);
                }
 
                [MonoTODO]
-               public virtual XmlNode SelectSingleNode (string xpath, XmlNamespaceManager nsmgr)
+               public XmlNode SelectSingleNode (string xpath, XmlNamespaceManager nsmgr)
                {
-                       throw new NotImplementedException ();
+                       XPathNavigator nav = CreateNavigator ();
+                       XPathExpression expr = nav.Compile (xpath);
+                       if (nsmgr != null)
+                               expr.SetContext (nsmgr);
+                       XPathNodeIterator iter = nav.Select (expr);
+                       if (!iter.MoveNext ())
+                               return null;
+                       return ((XmlDocumentNavigator) iter.Current).Node;
                }
 
                internal void SetParentNode (XmlNode parent)
@@ -303,10 +390,8 @@ namespace System.Xml
                        throw new NotImplementedException ();
                }
 
-               [MonoTODO]
                public abstract void WriteContentTo (XmlWriter w);
 
-               [MonoTODO]
                public abstract void WriteTo (XmlWriter w);
 
                #endregion