I tried the code @ https://wiki.mozilla.org/Embedding/NewApi/XpcomAccess
by inserting
nsCOMPtr<nsIDOMHTMLDocument> htmldoc = do_QueryInterface
(domDocument);
if (htmldoc)
{
nsCOMPtr<nsIDOMNode> retval;
nsCOMPtr<nsIDOMHTMLElement> body;
htmldoc->GetBody(getter_AddRefs(body));
nsCOMPtr<nsIDOMElement> newdiv;
// crashes on this line
domDocument->CreateElement(NS_LITERAL_STRING("div"), getter_AddRefs
(newdiv));
nsCOMPtr<nsIDOMElement> newhr;
domDocument->CreateElement(NS_LITERAL_STRING("hr"), getter_AddRefs
(newhr));
newdiv->AppendChild(newhr, getter_AddRefs(retval));
nsCOMPtr<nsIDOMText> text;
domDocument->CreateTextNode(NS_LITERAL_STRING("Provided by
MozEmbed"), getter_AddRefs(text));
// this line gave a compiler error
//newdiv->AppendChild(text, getter_AddRefs(retval));
body->AppendChild(newdiv, getter_AddRefs(retval));
}
into the DocumentLoaded() function.
Crashes when calling CreateElement on the domDocument too.
I got this idea from:
http://groups.google.com/group/mozilla.dev.embedding/browse_thread/thread/49ac1925b4f9f478
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