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; }