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mshtml: Support returning VT_NULL from return_nsstr_variant. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2017-07-20 18:11:22 +02:00 committed by Alexandre Julliard
parent 97b6b1e224
commit fd44c7ac26
2 changed files with 35 additions and 6 deletions
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7
dlls/mshtml/mshtml_private.h
View File

@ -926,12 +926,7 @@ UINT32 nsAString_GetData(const nsAString*,const PRUnichar**) DECLSPEC_HIDDEN;
void nsAString_Finish(nsAString*) DECLSPEC_HIDDEN;
HRESULT return_nsstr(nsresult,nsAString*,BSTR*) DECLSPEC_HIDDEN;
static inline HRESULT return_nsstr_variant(nsresult nsres, nsAString *nsstr, VARIANT *p)
{
V_VT(p) = VT_BSTR;
return return_nsstr(nsres, nsstr, &V_BSTR(p));
}
HRESULT return_nsstr_variant(nsresult nsres, nsAString *nsstr, VARIANT *p) DECLSPEC_HIDDEN;
nsICommandParams *create_nscommand_params(void) DECLSPEC_HIDDEN;
HRESULT nsnode_to_nsstring(nsIDOMNode*,nsAString*) DECLSPEC_HIDDEN;

34
dlls/mshtml/nsembed.c
View File

@ -69,6 +69,7 @@ static nsresult (CDECL *NS_CStringSetData)(nsACString*,const char*,PRUint32);
static nsresult (CDECL *NS_NewLocalFile)(const nsAString*,cpp_bool,nsIFile**);
static PRUint32 (CDECL *NS_StringGetData)(const nsAString*,const PRUnichar **,cpp_bool*);
static PRUint32 (CDECL *NS_CStringGetData)(const nsACString*,const char**,cpp_bool*);
static cpp_bool (CDECL *NS_StringGetIsVoid)(const nsAString*);
static void* (CDECL *NS_Alloc)(SIZE_T);
static void (CDECL *NS_Free)(void*);
@ -518,6 +519,7 @@ static BOOL load_xul(const PRUnichar *gre_path)
NS_DLSYM(NS_NewLocalFile);
NS_DLSYM(NS_StringGetData);
NS_DLSYM(NS_CStringGetData);
NS_DLSYM(NS_StringGetIsVoid);
NS_DLSYM(NS_Alloc);
NS_DLSYM(NS_Free);
NS_DLSYM(ccref_incr);
@ -870,6 +872,38 @@ HRESULT return_nsstr(nsresult nsres, nsAString *nsstr, BSTR *p)
return S_OK;
}
HRESULT return_nsstr_variant(nsresult nsres, nsAString *nsstr, VARIANT *p)
{
const PRUnichar *str;
if(NS_FAILED(nsres)) {
ERR("failed: %08x\n", nsres);
nsAString_Finish(nsstr);
return E_FAIL;
}
if(NS_StringGetIsVoid(nsstr)) {
TRACE("ret null\n");
V_VT(p) = VT_NULL;
}else {
nsAString_GetData(nsstr, &str);
TRACE("ret %s\n", debugstr_w(str));
if(*str) {
V_BSTR(p) = SysAllocString(str);
if(!V_BSTR(p)) {
nsAString_Finish(nsstr);
return E_OUTOFMEMORY;
}
}else {
V_BSTR(p) = NULL;
}
V_VT(p) = VT_BSTR;
}
nsAString_Finish(nsstr);
return S_OK;
}
nsICommandParams *create_nscommand_params(void)
{
nsICommandParams *ret = NULL;