/// <summary>
/// Creates a new navigator positioned at the same node as other navigator.
/// </summary>
/// <param name="other">Navigator to be copied</param>
private ObjectXPathNavigator(ObjectXPathNavigator other)
{
if (other._context.DetectLoops)
_navigationStack = new Stack();
//Trace("Ctor2");
MoveTo(other);
}
/// <summary>
/// Creates a new navigator positioned at the same node as other navigator.
/// </summary>
/// <param name="other">Navigator to be copied</param>
private ObjectXPathNavigator(ObjectXPathNavigator other)
{
if (other._context.DetectLoops)
{
_navigationStack = new Stack();
}
//Trace("Ctor2");
MoveTo(other);
}
/// <summary>
/// See <see cref="System.Xml.XPath.XPathNavigator.ComparePosition" /> for details.
/// </summary>
public override XmlNodeOrder ComparePosition(XPathNavigator nav)
{
ObjectXPathNavigator other = nav as ObjectXPathNavigator;
if (other == null)
{
return(XmlNodeOrder.Unknown);
}
if (_childNav == null && other._childNav == null)
{
if (_node == other._node)
{
return(XmlNodeOrder.Same);
}
Node parent = GetNonTransparentParent(_node);
Node otherParent = GetNonTransparentParent(other._node);
if (parent == otherParent)
{
if (_node.NodeType == XPathNodeType.Attribute)
{
if (other._node.NodeType == XPathNodeType.Attribute)
{
if (_node.Index < other._node.Index)
{
return(XmlNodeOrder.Before);
}
else
{
return(XmlNodeOrder.After);
}
}
else
{
return(XmlNodeOrder.Before);
}
}
}
}
XmlNodeOrder position = base.ComparePosition(nav);
return(position);
}
/// <summary>
/// See <see cref="System.Xml.XPath.XPathNavigator.IsSamePosition" /> for details.
/// </summary>
/// <returns>Returns <see langword="true"/> if this navigator is positioned
/// at the same node as other navigator, and <see langword="false"/>
/// otherwise.</returns>
public override bool IsSamePosition(XPathNavigator other)
{
#if DEBUG
Trace(() => string.Format("IsSamePosition( N#{0} )", other.GetHashCode()));
#endif
ObjectXPathNavigator x = other as ObjectXPathNavigator;
if (x == null)
{
return(false);
}
if (_context != x._context)
{
return(false);
}
// Compare child navigators
if (_childNav != null)
{
if (x._childNav != null)
{
// Both child navigators are not null
return(_childNav.IsSamePosition(x._childNav));
}
else
{
// Our navigator is not null, but other is null;
return(false);
}
}
else if (x._childNav != null)
{
// In case if our navigator is null and other is not.
return(false);
}
if (_node != x._node)
{
return(false);
}
return(true);
}
/// <summary>
/// Creates a new <see cref="LoopDetectionEventArgs"/> instance.
/// </summary>
/// <param name="navigator"><see cref="ObjectXPathNavigator"/> Navigator object</param>
/// <param name="node"><see cref="Node"/> Node that caused loop appearance</param>
public LoopDetectionEventArgs( ObjectXPathNavigator navigator, Node node )
{
_navigator = navigator;
_node = node;
_ignoreLoop = false;
}
/// <summary>
/// Creates a new <see cref="LoopDetectionEventArgs"/> instance.
/// </summary>
/// <param name="navigator"><see cref="ObjectXPathNavigator"/> Navigator object</param>
/// <param name="node"><see cref="Node"/> Node that caused loop appearance</param>
public LoopDetectionEventArgs(ObjectXPathNavigator navigator, Node node)
{
_navigator = navigator;
_node = node;
_ignoreLoop = false;
}
