/// <summary>
/// Check if one element is a descendant of another
/// </summary>
/// <param name="parent">
/// The ancestor element
/// </param>
/// <param name="child">
/// The child element in question
/// </param>
/// <returns>
/// True if child is a descendant of parent, false otherwise
/// </returns>
public static bool IsDescendantOf(DomNode parent, DomNode child)
{
while (!CUIUtility.IsNullOrUndefined(child))
{
try
{
if (child.NodeName.ToLower() == "body")
{
break;
}
}
catch
{
// Firefox will sometimes start trying to iterate its own chrome nodes such as
// the scrollbar which causes an access denied exception. If we get here, there's
// nothing we can do, so just check the condition and break out of the loop
if (child == parent)
return true;
break;
}
if (child == parent)
return true;
child = child.ParentNode;
}
return false;
}
extern public void AppendChild(DomNode newChild);
/// <summary>
/// Removes all the child nodes from a DOMElement the slow way.
/// Don't use this unless you have to (see remarks)
/// </summary>
/// <param name="elm">A pointer to the node to remove children from</param>
/// <remarks>
/// This method should only be used when we can't replace elm in the DOM tree.
/// If you don't need this guarantee, please use RemoveChildNodes(DOMElement elm) instead.
/// </remarks>
/// <owner alias="JKern" />
public static void RemoveChildNodesSlow(DomNode elm)
{
while (elm.HasChildNodes())
{
elm.RemoveChild(elm.FirstChild);
}
}
extern public DomNode SwapNode(DomNode otherNode);
extern public DomNode ReplaceNode(DomNode replacement);
extern public DomNode RemoveChild(DomNode oldChild);
extern public DomNode ReplaceChild(DomNode newChild, DomNode oldChild);
extern public void Add(DomNode child);
extern public DomNode InsertBefore(DomNode newChild, DomNode child);
extern public DomNode ReplaceNode(DomNode replacement);
extern public void AppendChild(DomNode newChild);
extern public DomNode SwapNode(DomNode otherNode);
extern public DomNode ReplaceChild(DomNode newChild, DomNode oldChild);
extern public DomNode RemoveChild(DomNode oldChild);
extern public DomNode InsertBefore(DomNode newChild, DomNode child);
extern public void Add(DomNode child);
