Jacek Caban : mshtml: Properly convert VT_NULL to string in get_elem_attr_value_by_dispid.
Alexandre Julliard
julliard at wine.codeweavers.com
Wed Jan 6 14:50:56 CST 2016
Module: wine
Branch: master
Commit: f394dca92a014fa07e0cec59f97fb9fd2ba157da
URL: http://source.winehq.org/git/wine.git/?a=commit;h=f394dca92a014fa07e0cec59f97fb9fd2ba157da
Author: Jacek Caban <jacek at codeweavers.com>
Date: Tue Jan 5 18:53:21 2016 +0100
mshtml: Properly convert VT_NULL to string in get_elem_attr_value_by_dispid.
Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/mshtml/htmlelem.c | 8 ++++++++
dlls/mshtml/tests/dom.c | 13 ++++++++++++-
2 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/dlls/mshtml/htmlelem.c b/dlls/mshtml/htmlelem.c
index ce9d859..e5ae4e0 100644
--- a/dlls/mshtml/htmlelem.c
+++ b/dlls/mshtml/htmlelem.c
@@ -644,6 +644,8 @@ HRESULT get_elem_attr_value_by_dispid(HTMLElement *elem, DISPID dispid, DWORD fl
EXCEPINFO excep;
HRESULT hres;
+ static const WCHAR nullW[] = {'n','u','l','l',0};
+
hres = IDispatchEx_InvokeEx(&elem->node.event_target.dispex.IDispatchEx_iface, dispid, LOCALE_SYSTEM_DEFAULT,
DISPATCH_PROPERTYGET, &dispParams, ret, &excep, NULL);
if(FAILED(hres))
@@ -653,6 +655,12 @@ HRESULT get_elem_attr_value_by_dispid(HTMLElement *elem, DISPID dispid, DWORD fl
switch(V_VT(ret)) {
case VT_BSTR:
break;
+ case VT_NULL:
+ V_BSTR(ret) = SysAllocString(nullW);
+ if(!V_BSTR(ret))
+ return E_OUTOFMEMORY;
+ V_VT(ret) = VT_BSTR;
+ break;
case VT_DISPATCH:
IDispatch_Release(V_DISPATCH(ret));
V_VT(ret) = VT_BSTR;
diff --git a/dlls/mshtml/tests/dom.c b/dlls/mshtml/tests/dom.c
index bcb016d..1be81e5 100644
--- a/dlls/mshtml/tests/dom.c
+++ b/dlls/mshtml/tests/dom.c
@@ -1411,8 +1411,19 @@ static void test_get_set_attr(IHTMLDocument2 *doc)
ok(V_VT(&val) == VT_BOOL, "variant type should have been VT_BOOL (0x%x), was: 0x%x\n", VT_BOOL, V_VT(&val));
ok(V_BOOL(&val) == VARIANT_TRUE, "variant value should have been VARIANT_TRUE (0x%x), was %d\n", VARIANT_TRUE, V_BOOL(&val));
VariantClear(&val);
- SysFreeString(bstr);
+ /* overwrite the attribute with null */
+ V_VT(&val) = VT_NULL;
+ hres = IHTMLElement_setAttribute(elem, bstr, val, 0);
+ ok(hres == S_OK, "setAttribute failed: %08x\n", hres);
+
+ hres = IHTMLElement_getAttribute(elem, bstr, 2, &val);
+ ok(hres == S_OK, "getAttribute failed: %08x\n", hres);
+ ok(V_VT(&val) == VT_BSTR, "V_VT(val) = %u, expected VT_BSTR", V_VT(&val));
+ ok(!strcmp_wa(V_BSTR(&val), "null"), "V_BSTR(val) = %s, expected \"null\"\n", wine_dbgstr_w(V_BSTR(&val)));
+ VariantClear(&val);
+
+ SysFreeString(bstr);
IHTMLElement_Release(elem);
}
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