mshtml: Implement querySelectorAll for document fragments.

dlls/mshtml/htmldoc.c

@@ -4762,8 +4762,18 @@ static HRESULT WINAPI DocumentSelector_querySelectorAll(IDocumentSelector *iface
     TRACE("(%p)->(%s %p)\n", This, debugstr_w(v), pel);
 
     nsAString_InitDepend(&nsstr, v);
-    nsres = nsIDOMDocument_QuerySelectorAll(This->dom_document, &nsstr, &node_list);
+    if(This->dom_document)
+        nsres = nsIDOMDocument_QuerySelectorAll(This->dom_document, &nsstr, &node_list);
+    else {
+        nsIDOMDocumentFragment *frag;
+        nsres = nsIDOMNode_QueryInterface(This->node.nsnode, &IID_nsIDOMDocumentFragment, (void**)&frag);
+        if(NS_SUCCEEDED(nsres)) {
+            nsres = nsIDOMDocumentFragment_QuerySelectorAll(frag, &nsstr, &node_list);
+            nsIDOMDocumentFragment_Release(frag);
+        }
+    }
     nsAString_Finish(&nsstr);
+
     if(NS_FAILED(nsres)) {
         WARN("QuerySelectorAll failed: %08lx\n", nsres);
         return map_nsresult(nsres);

dlls/mshtml/tests/dom.js

@@ -285,6 +285,19 @@ sync_test("query_selector", function() {
     ok(e.tagName === "A", "e.tagName = " + e.tagName);
     e = frag.querySelector("a");
     ok(e.tagName === "A", "e.tagName = " + e.tagName);
+
+    e = document.querySelectorAll(".class1");
+    ok(e.length === 3, "e.length = " + e.length);
+    e = document.body.querySelectorAll(".class1");
+    ok(e.length === 3, "e.length = " + e.length);
+    e = document.querySelectorAll(".class2");
+    ok(e.length === 1, "e.length = " + e.length);
+    e = document.body.querySelectorAll(".class2");
+    ok(e.length === 1, "e.length = " + e.length);
+    e = frag.querySelectorAll(".class3");
+    ok(e.length === 2, "e.length = " + e.length);
+    e = frag.querySelectorAll(".class4");
+    ok(e.length === 1, "e.length = " + e.length);
 });
 
 sync_test("compare_position", function() {