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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
namespace Microsoft.Xml
{
using System;
using Microsoft.Xml.XPath;
using System.Text;
using System.Diagnostics;
// Represents the text content of an element or attribute.
public class XmlWhitespace : XmlCharacterData
{
protected internal XmlWhitespace(string strData, XmlDocument doc) : base(strData, doc)
{
if (!doc.IsLoading && !base.CheckOnData(strData))
throw new ArgumentException(ResXml.Xdom_WS_Char);
}
// Gets the name of the node.
public override String Name
{
get
{
return OwnerDocument.strNonSignificantWhitespaceName;
}
}
// Gets the name of the current node without the namespace prefix.
public override String LocalName
{
get
{
return OwnerDocument.strNonSignificantWhitespaceName;
}
}
// Gets the type of the current node.
public override XmlNodeType NodeType
{
get
{
return XmlNodeType.Whitespace;
}
}
public override XmlNode ParentNode
{
get
{
switch (parentNode.NodeType)
{
case XmlNodeType.Document:
return base.ParentNode;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
case XmlNodeType.Whitespace:
case XmlNodeType.SignificantWhitespace:
XmlNode parent = parentNode.parentNode;
while (parent.IsText)
{
parent = parent.parentNode;
}
return parent;
default:
return parentNode;
}
}
}
public override String Value
{
get
{
return Data;
}
set
{
if (CheckOnData(value))
Data = value;
else
throw new ArgumentException(ResXml.Xdom_WS_Char);
}
}
// Creates a duplicate of this node.
public override XmlNode CloneNode(bool deep)
{
Debug.Assert(OwnerDocument != null);
return OwnerDocument.CreateWhitespace(Data);
}
// Saves the node to the specified XmlWriter.
public override void WriteTo(XmlWriter w)
{
w.WriteWhitespace(Data);
}
// Saves all the children of the node to the specified XmlWriter.
public override void WriteContentTo(XmlWriter w)
{
// Intentionally do nothing
}
internal override XPathNodeType XPNodeType
{
get
{
XPathNodeType xnt = XPathNodeType.Whitespace;
DecideXPNodeTypeForTextNodes(this, ref xnt);
return xnt;
}
}
internal override bool IsText
{
get
{
return true;
}
}
public override XmlNode PreviousText
{
get
{
if (parentNode.IsText)
{
return parentNode;
}
return null;
}
}
}
}
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