Re: [PATCH 0/1] MR8586: mshtml: Fix node's onclick not responding.

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about dlls/mshtml/mutation.c:
> +*/
>  static void NSAPI nsDocumentObserver_AttributeChanged(nsIDocumentObserver *iface, nsIDocument *aDocument,
> -
>    void *aElement, LONG aNameSpaceID, nsIAtom *aAttribute, LONG aModType, const nsAttrValue *aOldValue)
> -
>    /*mozilla::dom::Element*/ void *aElement, LONG aNameSpaceID, nsIAtom *aAttribute, LONG aModType, const nsAttrValue *aOldValue)
>
> {
> - HTMLDocumentNode *This = impl_from_nsIDocumentObserver(iface);
> - nsIDOMElement *nselem = NULL;
> - nsIContent *nselem_node;
> - nsresult nsres;
> -
> - TRACE("%p, %p, %p\n", iface, This->dom_document, aElement);
> -
> - if (aElement)
> - {
> -
>    nselem_node = (nsIContent *)aElement;
> -
>    nsres = nsIContent_QueryInterface(nselem_node, &IID_nsIDOMElement, (void **)&nselem);

You may just treat it as `nsISupports`, like:
```
nsres = nsISupports_QueryInterface(aElement, &IID_nsIDOMElement, (void **)&nselem);
```