XmlNavNameFilter.cs

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using System.Xml.XPath;
 
namespace System.Xml.Xsl.Runtime;
 
internal sealed class XmlNavNameFilter : XmlNavigatorFilter
{
    private readonly string _localName;
 
    private readonly string _namespaceUri;
 
    public static XmlNavigatorFilter Create(string localName, string namespaceUri)
    {
        return new XmlNavNameFilter(localName, namespaceUri);
    }
 
    private XmlNavNameFilter(string localName, string namespaceUri)
    {
        _localName = localName;
        _namespaceUri = namespaceUri;
    }
 
    public override bool MoveToContent(XPathNavigator navigator)
    {
        return navigator.MoveToChild(_localName, _namespaceUri);
    }
 
    public override bool MoveToNextContent(XPathNavigator navigator)
    {
        return navigator.MoveToNext(_localName, _namespaceUri);
    }
 
    public override bool MoveToFollowingSibling(XPathNavigator navigator)
    {
        return navigator.MoveToNext(_localName, _namespaceUri);
    }
 
    public override bool MoveToPreviousSibling(XPathNavigator navigator)
    {
        return navigator.MoveToPrevious(_localName, _namespaceUri);
    }
 
    public override bool MoveToFollowing(XPathNavigator navigator, XPathNavigator navEnd)
    {
        return navigator.MoveToFollowing(_localName, _namespaceUri, navEnd);
    }
 
    public override bool IsFiltered(XPathNavigator navigator)
    {
        if (!(navigator.LocalName != _localName))
        {
            return navigator.NamespaceURI != _namespaceUri;
        }
        return true;
    }
}