mshtml: Correctly handle documents with no window associated in IHTMLDocument2::get_location.

dlls/mshtml/htmldoc.c

@@ -745,12 +745,12 @@ static HRESULT WINAPI HTMLDocument_get_referrer(IHTMLDocument2 *iface, BSTR *p)
 
 static HRESULT WINAPI HTMLDocument_get_location(IHTMLDocument2 *iface, IHTMLLocation **p)
 {
-    HTMLDocument *This = impl_from_IHTMLDocument2(iface);
+    HTMLDocumentNode *This = impl_from_IHTMLDocument2(iface)->doc_node;
 
     TRACE("(%p)->(%p)\n", This, p);
 
-    if(!This->doc_node->nsdoc) {
-        WARN("NULL nsdoc\n");
+    if(!This->nsdoc || !This->window) {
+        WARN("NULL window\n");
         return E_UNEXPECTED;
     }
 

dlls/mshtml/tests/dom.c

@@ -6921,7 +6921,9 @@ static void test_dom_implementation(IHTMLDocument2 *doc)
     hres = IHTMLDOMImplementation_QueryInterface(dom_implementation, &IID_IHTMLDOMImplementation2,
                                                  (void**)&dom_implementation2);
     if(SUCCEEDED(hres)) {
+        IHTMLDocument2 *new_document2;
         IHTMLDocument7 *new_document;
+        IHTMLLocation *location;
 
         str = a2bstr("test");
         hres = IHTMLDOMImplementation2_createHTMLDocument(dom_implementation2, str, &new_document);
@@ -6930,6 +6932,13 @@ static void test_dom_implementation(IHTMLDocument2 *doc)
         test_disp((IUnknown*)new_document, &DIID_DispHTMLDocument, &CLSID_HTMLDocument, "[object]");
         test_ifaces((IUnknown*)new_document, doc_node_iids);
 
+        hres = IHTMLDocument7_QueryInterface(new_document, &IID_IHTMLDocument2, (void**)&new_document2);
+        ok(hres == S_OK, "Could not get IHTMLDocument2 iface: %08x\n", hres);
+
+        hres = IHTMLDocument2_get_location(new_document2, &location);
+        ok(hres == E_UNEXPECTED, "get_location returned: %08x\n", hres);
+
+        IHTMLDocument2_Release(new_document2);
         IHTMLDocument7_Release(new_document);
         IHTMLDOMImplementation2_Release(dom_implementation2);
     }else {