protected override void OnBeginTag(BeginTag tag)
{
if (tag == null)
{
return;
}
if (_firstTag)
{
if (!tag.NameEquals(HTMLTokens.Html))
{
EmitTag(HTMLTokens.Html);
}
_firstTag = false;
}
if (!_seenHead && !TagPermittedAboveBody(tag))
{
Emit("<head>");
EmitAdditionalMetaData();
Emit("</head>");
_seenHead = true;
}
if (tag.NameEquals(HTMLTokens.Script))
{
if (!tag.Complete)
{
_scriptDepth++;
}
return;
}
if (tag.NameEquals(HTMLTokens.Head))
{
_seenHead = true;
}
else if (!_seenBody && !tag.NameEquals(HTMLTokens.Body))
{
if (!TagPermittedAboveBody(tag))
{
EmitTag(HTMLTokens.Body);
_seenBody = true;
}
}
else if (!_seenBody && tag.NameEquals(HTMLTokens.Body))
{
_seenBody = true;
}
if (tag.NameEquals(HTMLTokens.Base))
{
if (_metaData == null || _metaData.Base == null)
{
return;
}
else
{
Attr href = tag.GetAttribute(HTMLTokens.Href);
if (href != null)
{
href.Value = _metaData.Base;
}
}
_emittedMetaData.Add(HTMLTokens.Base);
}
if (tag.NameEquals(HTMLTokens.Meta))
{
ModifyMetaDataAsNecessary(tag);
}
foreach (Attr attr in tag.Attributes)
{
if (attr != null)
{
if (IsScriptAttribute(attr))
{
tag.RemoveAttribute(attr.Name);
}
else
{
attr.Value = ReplaceValue(attr.Value);
}
}
}
Emit(tag.ToString());
base.OnBeginTag(tag);
}