Added support for shadowing of element pseudo-variables.

dlls/mshtml/dispex.c

@@ -480,6 +480,19 @@ HRESULT dispex_get_dprop_ref(DispatchEx *This, const WCHAR *name, BOOL alloc, VA
     return S_OK;
 }
 
+HRESULT dispex_get_dynid(DispatchEx *This, const WCHAR *name, DISPID *id)
+{
+    dynamic_prop_t *prop;
+    HRESULT hres;
+
+    hres = get_dynamic_prop(This, name, fdexNameEnsure, &prop);
+    if(FAILED(hres))
+        return hres;
+
+    *id = DISPID_DYNPROP_0 + (prop - This->dynamic_data->props);
+    return S_OK;
+}
+
 static HRESULT dispex_value(DispatchEx *This, LCID lcid, WORD flags, DISPPARAMS *params,
         VARIANT *res, EXCEPINFO *ei, IServiceProvider *caller)
 {

dlls/mshtml/htmlwindow.c

@@ -2461,7 +2461,9 @@ static HRESULT HTMLWindow_invoke(DispatchEx *dispex, DISPID id, LCID lcid, WORD
         IDispatch_Release(disp);
         break;
     }
-    case GLOBAL_ELEMENTVAR: {
+    case GLOBAL_ELEMENTVAR:
+        switch(flags) {
+        case DISPATCH_PROPERTYGET: {
             IHTMLElement *elem;
 
             hres = IHTMLDocument3_getElementById(&This->doc->basedoc.IHTMLDocument3_iface,
@@ -2474,8 +2476,25 @@ static HRESULT HTMLWindow_invoke(DispatchEx *dispex, DISPID id, LCID lcid, WORD
 
             V_VT(res) = VT_DISPATCH;
             V_DISPATCH(res) = (IDispatch*)elem;
-        break;
+            return S_OK;
         }
+        case DISPATCH_PROPERTYPUT: {
+            DISPID dispex_id;
+
+            hres = dispex_get_dynid(&This->dispex, prop->name, &dispex_id);
+            if(FAILED(hres))
+                return hres;
+
+            prop->type = GLOBAL_DISPEXVAR;
+            prop->id = dispex_id;
+            return IDispatchEx_InvokeEx(&This->dispex.IDispatchEx_iface, dispex_id, 0, flags, params, res, ei, caller);
+        }
+        default:
+            FIXME("Not suppoted flags: %x\n", flags);
+            return E_NOTIMPL;
+        }
+    case GLOBAL_DISPEXVAR:
+        return IDispatchEx_InvokeEx(&This->dispex.IDispatchEx_iface, prop->id, 0, flags, params, res, ei, caller);
     default:
         ERR("invalid type %d\n", prop->type);
         hres = DISP_E_MEMBERNOTFOUND;

dlls/mshtml/mshtml_private.h

@@ -229,6 +229,7 @@ BOOL dispex_query_interface(DispatchEx*,REFIID,void**) DECLSPEC_HIDDEN;
 HRESULT dispex_get_dprop_ref(DispatchEx*,const WCHAR*,BOOL,VARIANT**) DECLSPEC_HIDDEN;
 HRESULT get_dispids(tid_t,DWORD*,DISPID**) DECLSPEC_HIDDEN;
 HRESULT remove_prop(DispatchEx*,BSTR,VARIANT_BOOL*) DECLSPEC_HIDDEN;
+HRESULT dispex_get_dynid(DispatchEx*,const WCHAR*,DISPID*) DECLSPEC_HIDDEN;
 void release_typelib(void) DECLSPEC_HIDDEN;
 HRESULT get_htmldoc_classinfo(ITypeInfo **typeinfo) DECLSPEC_HIDDEN;
 
@@ -248,7 +249,8 @@ typedef struct ScriptHost ScriptHost;
 
 typedef enum {
     GLOBAL_SCRIPTVAR,
-    GLOBAL_ELEMENTVAR
+    GLOBAL_ELEMENTVAR,
+    GLOBAL_DISPEXVAR
 } global_prop_type_t;
 
 typedef struct {

dlls/mshtml/tests/jstest.html

@@ -60,6 +60,14 @@ function test_document_name_as_index() {
     var e = document.getElementById("formid");
     ok(!!e, "e is null");
     ok(!("formid" in document), "formid is in document");
+
+    document.body.innerHTML = '<form name="formname"></form>';
+    ok("formname" in window, "formname' is not in window");
+    ok(typeof(window.formname) === "object", "typeof(window.formname) = " + typeof(window.formname));
+    window.formname = 1;
+    ok(window.formname === 1, "window.formname = " + window.formname);
+    formname = 2;
+    ok(window.formname === 2, "window.formname = " + window.formname);
 }
 
 function test_remove_style_attribute() {