internal HtmlNode InsertBefore(HtmlNode node, HtmlNode refChild)
{
Debug.Assert(m_XmlNode != null);
Debug.Assert(m_XmlNode.ParentNode != null || (this is HtmlDocument));
Debug.Assert(m_ChildNodeList != null);
Debug.Assert(!(node is HtmlElement) || !(node as HtmlElement).IsEndTag, "If the child is an HtmlElement it must not be an 'End Tag'!");
OnChildAppendingEventArgs ev = new OnChildAppendingEventArgs();
if (OnChildAppending != null)
{
OnChildAppending(node, ref ev);
}
if (!ev.Cancel)
{
Debug.WriteLine("Adding a (" + node.Name + ") tag as a child of a (" + this.Name + ") tag.");
node.ParentNode.ChildNodes.m_List.Remove(node);
m_XmlNode.InsertBefore(node.m_XmlNode, refChild == null ? null : refChild.m_XmlNode);
if (refChild == null)
{
m_ChildNodeList.m_List.Add(node);
}
else
{
int refIdx = m_ChildNodeList.m_List.IndexOf(refChild);
Debug.Assert(refIdx != -1);
m_ChildNodeList.m_List.Insert(refIdx, node);
}
if (OnChildAppended != null)
{
OnChildAppended(node);
}
Debug.Assert(m_XmlNode == node.m_XmlNode.ParentNode);
Debug.Assert(m_XmlNode.ParentNode != null || (this is HtmlDocument));
return(node);
}
else
{
return(null);
}
}
internal HtmlNode AppendChild(HtmlNode node)
{
Debug.Assert(m_XmlNode != null);
Debug.Assert(m_XmlNode.ParentNode != null || (this is HtmlDocument));
Debug.Assert(m_ChildNodeList != null);
Debug.Assert(!(node is HtmlElement) || !(node as HtmlElement).IsEndTag, "If the child is an HtmlElement it must not be an 'End Tag'!");
OnChildAppendingEventArgs ev = new OnChildAppendingEventArgs();
if (OnChildAppending != null)
{
OnChildAppending(node, ref ev);
}
if (!ev.Cancel)
{
Debug.WriteLine("Adding a (" + node.Name + ") tag as a child of a (" + this.Name + ") tag.");
Debug.Assert(
(m_XmlNode == node.m_XmlNode.OwnerDocument) ||
(m_XmlNode.OwnerDocument == node.m_XmlNode.OwnerDocument)
);
m_XmlNode.AppendChild(node.m_XmlNode);
m_ChildNodeList.m_List.Add(node);
if (OnChildAppended != null)
{
OnChildAppended(node);
}
Debug.Assert(this.Equals(node.ParentNode));
Debug.Assert(m_XmlNode == node.m_XmlNode.ParentNode);
Debug.Assert(m_XmlNode.ParentNode != null || (this is HtmlDocument));
return(node);
}
else
{
return(null);
}
}
private void ChildAppending(HtmlNode child, ref OnChildAppendingEventArgs e)
{
// NOTE: All "<!DOCTYPE" elements are *always* added to the HtmlDocument by the parser
// so we cannot miss a "<!DOCTYPE" on a wrong place
if (child is HtmlDocTypeElement)
{
// Dont add the DocType element. This will stuff up the XPath queries
e.Cancel = true;
if (m_DocTypeElement == null)
{
m_DocTypeElement = child as HtmlDocTypeElement;
//<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"
//<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
//<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
//<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
//<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
//<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/frameset.dtd">
//<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
// By default use Html 4.01 Strict
m_HtmlDtd = HtmlDtd.Html401;
if (!string.IsNullOrEmpty(m_DocTypeElement.PublicId))
{
string[] tokens = m_DocTypeElement.PublicId.Split(new string[] { "//" }, StringSplitOptions.None);
if (tokens.Length > 2)
{
if (tokens[1] == "W3C")
{
string dtd = tokens[2].Substring(4);
if (dtd == XHTML_ST)
{
m_HtmlDtd = HtmlDtd.XhtmlStrict;
}
if (dtd == XHTML_TR)
{
m_HtmlDtd = HtmlDtd.XhtmlTransitional;
}
if (dtd == XHTML_FR)
{
m_HtmlDtd = HtmlDtd.XhtmlFrameset;
}
if (dtd == HTML_4_01)
{
m_HtmlDtd = HtmlDtd.Html401;
}
if (dtd == HTML_4_01_TR)
{
m_HtmlDtd = HtmlDtd.Html401Transitional;
}
if (dtd == HTML_4_01_FR)
{
m_HtmlDtd = HtmlDtd.Html401Frameset;
}
if (dtd == HTML_3_2)
{
m_HtmlDtd = HtmlDtd.Html32;
}
}
}
}
}
}
}
private void ChildAppending(HtmlNode child, ref OnChildAppendingEventArgs e)
{
//Debug.Assert(child != null);
//if (child != null && child is HtmlElement)
//{
// if ((child as HtmlElement).IsStructureModuleElement)
// {
// Debug.Assert(child.Name != null);
// if (child.Name.Equals("BODY", StringComparison.CurrentCultureIgnoreCase))
// {
// // This is a <BODY> tag
// if (OwnerDocument.BodyElement == null)
// OwnerDocument.m_BodyElement = child as HtmlElement;
// else
// {
// // Don't add a second body tag, ignore it!
// e.Cancel = true;
// Debug.WriteLine("Ignoring a BODY tag because another BODY was already found at " + OwnerDocument.BodyElement.XPathLocation);
// }
// }
// if (child.Name.Equals("HEAD", StringComparison.CurrentCultureIgnoreCase))
// {
// // This is a <HEAD> tag
// if (OwnerDocument.HeadElement == null)
// OwnerDocument.m_HeadElement = child as HtmlElement;
// else
// {
// // Don't add a second head tag, ignore it!
// e.Cancel = true;
// Debug.WriteLine("Ignoring a HEAD tag because another HEAD was already found at " + OwnerDocument.HeadElement.XPathLocation);
// }
// }
// if (child.Name.Equals("HTML", StringComparison.CurrentCultureIgnoreCase))
// {
// // This is a <HTML> tag
// if (OwnerDocument.HtmlElement == null)
// {
// Debug.Assert(false);
// throw new HtmlParserException();
// // We should never come here. The HTML elements are handled by the HtmlParser's ProcessHtmlElement() routine
// }
// else
// {
// // Don't add a second html tag, ignore it!
// e.Cancel = true;
// Debug.WriteLine("Ignoring an HTML tag because another HTML was already found at " + OwnerDocument.HtmlElement.XPathLocation);
// }
// }
// }
//}
//else
//{
// // It could be a comment, <%@, <