HRESULT get_doc_elem_by_id(HTMLDocumentNode *doc, const WCHAR *id, HTMLElement **ret)
{
nsIDOMNodeList *nsnode_list;
nsIDOMElement *nselem;
nsIDOMNode *nsnode;
nsAString id_str;
nsresult nsres;
HRESULT hres;
if(!doc->nsdoc) {
WARN("NULL nsdoc\n");
return E_UNEXPECTED;
}
nsAString_InitDepend(&id_str, id);
/* get element by id attribute */
nsres = nsIDOMHTMLDocument_GetElementById(doc->nsdoc, &id_str, &nselem);
if(FAILED(nsres)) {
ERR("GetElementById failed: %08x\n", nsres);
nsAString_Finish(&id_str);
return E_FAIL;
}
/* get first element by name attribute */
nsres = nsIDOMHTMLDocument_GetElementsByName(doc->nsdoc, &id_str, &nsnode_list);
nsAString_Finish(&id_str);
if(FAILED(nsres)) {
ERR("getElementsByName failed: %08x\n", nsres);
if(nselem)
nsIDOMElement_Release(nselem);
return E_FAIL;
}
nsres = nsIDOMNodeList_Item(nsnode_list, 0, &nsnode);
nsIDOMNodeList_Release(nsnode_list);
assert(nsres == NS_OK);
if(nsnode && nselem) {
UINT16 pos;
nsres = nsIDOMNode_CompareDocumentPosition(nsnode, (nsIDOMNode*)nselem, &pos);
if(NS_FAILED(nsres)) {
FIXME("CompareDocumentPosition failed: 0x%08x\n", nsres);
nsIDOMNode_Release(nsnode);
nsIDOMElement_Release(nselem);
return E_FAIL;
}
TRACE("CompareDocumentPosition gave: 0x%x\n", pos);
if(!(pos & (DOCUMENT_POSITION_PRECEDING | DOCUMENT_POSITION_CONTAINS))) {
nsIDOMElement_Release(nselem);
nselem = NULL;
}
}
if(nsnode) {
if(!nselem) {
nsres = nsIDOMNode_QueryInterface(nsnode, &IID_nsIDOMElement, (void**)&nselem);
assert(nsres == NS_OK);
}
nsIDOMNode_Release(nsnode);
}
if(!nselem) {
*ret = NULL;
return S_OK;
}
hres = get_elem(doc, nselem, ret);
nsIDOMElement_Release(nselem);
return hres;
}
static HRESULT WINAPI HTMLDocument3_getElementById(IHTMLDocument3 *iface, BSTR v,
IHTMLElement **pel)
{
HTMLDocument *This = HTMLDOC3_THIS(iface);
nsIDOMElement *nselem;
HTMLDOMNode *node;
nsIDOMNode *nsnode, *nsnode_by_id, *nsnode_by_name;
nsIDOMNodeList *nsnode_list;
nsAString id_str;
nsresult nsres;
TRACE("(%p)->(%s %p)\n", This, debugstr_w(v), pel);
if(!This->doc_node->nsdoc) {
WARN("NULL nsdoc\n");
return E_UNEXPECTED;
}
nsAString_InitDepend(&id_str, v);
/* get element by id attribute */
nsres = nsIDOMHTMLDocument_GetElementById(This->doc_node->nsdoc, &id_str, &nselem);
if(FAILED(nsres)) {
ERR("GetElementById failed: %08x\n", nsres);
nsAString_Finish(&id_str);
return E_FAIL;
}
nsnode_by_id = (nsIDOMNode*)nselem;
/* get first element by name attribute */
nsres = nsIDOMHTMLDocument_GetElementsByName(This->doc_node->nsdoc, &id_str, &nsnode_list);
nsAString_Finish(&id_str);
if(FAILED(nsres)) {
ERR("getElementsByName failed: %08x\n", nsres);
if(nsnode_by_id)
nsIDOMNode_Release(nsnode_by_id);
return E_FAIL;
}
nsIDOMNodeList_Item(nsnode_list, 0, &nsnode_by_name);
nsIDOMNodeList_Release(nsnode_list);
if(nsnode_by_name && nsnode_by_id) {
nsIDOM3Node *node3;
PRUint16 pos;
nsres = nsIDOMNode_QueryInterface(nsnode_by_name, &IID_nsIDOM3Node, (void**)&node3);
if(NS_FAILED(nsres)) {
FIXME("failed to get nsIDOM3Node interface: 0x%08x\n", nsres);
nsIDOMNode_Release(nsnode_by_name);
nsIDOMNode_Release(nsnode_by_id);
return E_FAIL;
}
nsres = nsIDOM3Node_CompareDocumentPosition(node3, nsnode_by_id, &pos);
nsIDOM3Node_Release(node3);
if(NS_FAILED(nsres)) {
FIXME("nsIDOM3Node_CompareDocumentPosition failed: 0x%08x\n", nsres);
nsIDOMNode_Release(nsnode_by_name);
nsIDOMNode_Release(nsnode_by_id);
return E_FAIL;
}
TRACE("CompareDocumentPosition gave: 0x%x\n", pos);
if(pos & PRECEDING || pos & CONTAINS) {
nsnode = nsnode_by_id;
nsIDOMNode_Release(nsnode_by_name);
}else {
nsnode = nsnode_by_name;
nsIDOMNode_Release(nsnode_by_id);
}
}else
nsnode = nsnode_by_name ? nsnode_by_name : nsnode_by_id;
if(nsnode) {
node = get_node(This->doc_node, nsnode, TRUE);
nsIDOMNode_Release(nsnode);
IHTMLDOMNode_QueryInterface(HTMLDOMNODE(node), &IID_IHTMLElement, (void**)pel);
}else {
*pel = NULL;
}
return S_OK;
}
