[PATCH v3 3/6] uiautomationcore: Implement IUIAutomation::IntSafeArrayToNativeArray.

[Connor McAdams]

From: Connor McAdams

Signed-off-by: Connor McAdams 
---
 dlls/uiautomationcore/tests/uiautomation.c | 36 ++++++++++++++++++
 dlls/uiautomationcore/uia_client.c         |  2 +-
 dlls/uiautomationcore/uia_com_client.c     | 44 +++++++++++++++++++++-
 dlls/uiautomationcore/uia_private.h        |  1 +
 4 files changed, 80 insertions(+), 3 deletions(-)

diff --git a/dlls/uiautomationcore/tests/uiautomation.c b/dlls/uiautomationcore/tests/uiautomation.c
index 872f2b5950b..d5cfccf729f 100644
--- a/dlls/uiautomationcore/tests/uiautomation.c
+++ b/dlls/uiautomationcore/tests/uiautomation.c
@@ -10014,6 +10014,41 @@ exit:
     UnregisterClassA("test_Element_GetPropertyValue class", NULL);
 }

+static void test_CUIAutomation_value_conversion(IUIAutomation *uia_iface)
+{
+    static const VARTYPE invalid_int_vts[] = { VT_I8, VT_INT };
+    int *out_arr, out_arr_count, i;
+    SAFEARRAY *sa;
+    VARTYPE vt;
+    HRESULT hr;
+
+    for (i = 0; i < ARRAY_SIZE(invalid_int_vts); i++)
+    {
+        vt = invalid_int_vts[i];
+        sa = SafeArrayCreateVector(vt, 0, 2);
+        ok(!!sa, "sa == NULL\n");
+
+        out_arr_count = 0xdeadbeef;
+        out_arr = (int *)0xdeadbeef;
+        hr = IUIAutomation_IntSafeArrayToNativeArray(uia_iface, sa, &out_arr, &out_arr_count);
+        ok(hr == E_INVALIDARG, "Unexpected hr %#lx.\n", hr);
+        ok(!out_arr, "out_arr != NULL\n");
+        ok(out_arr_count == 0xdeadbeef, "Unexpected out_arr_count %#x\n", out_arr_count);
+        SafeArrayDestroy(sa);
+    }
+
+    /* Only accepts VT_I4 as an input array type. */
+    sa = create_i4_safearray();
+    hr = IUIAutomation_IntSafeArrayToNativeArray(uia_iface, sa, &out_arr, &out_arr_count);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+    ok(out_arr_count == ARRAY_SIZE(uia_i4_arr_prop_val), "Unexpected out_arr_count %#x\n", out_arr_count);
+    for (i = 0; i < ARRAY_SIZE(uia_i4_arr_prop_val); i++)
+        ok(out_arr[i] == uia_i4_arr_prop_val[i], "out_arr[%d]: Expected %ld, got %d\n", i, uia_i4_arr_prop_val[i], out_arr[i]);
+
+    SafeArrayDestroy(sa);
+    CoTaskMemFree(out_arr);
+}
+
 struct uia_com_classes {
     const GUID *clsid;
     const GUID *iid;
@@ -10077,6 +10112,7 @@ static void test_CUIAutomation(void)
     ok(hr == S_OK, "Failed to create IUIAutomation interface, hr %#lx\n", hr);
     ok(!!uia_iface, "uia_iface == NULL\n");

+    test_CUIAutomation_value_conversion(uia_iface);
     test_ElementFromHandle(uia_iface, has_cui8);
     test_Element_GetPropertyValue(uia_iface);

diff --git a/dlls/uiautomationcore/uia_client.c b/dlls/uiautomationcore/uia_client.c
index ce2aeb21622..8d543bd4dc7 100644
--- a/dlls/uiautomationcore/uia_client.c
+++ b/dlls/uiautomationcore/uia_client.c
@@ -107,7 +107,7 @@ static HRESULT get_safearray_dim_bounds(SAFEARRAY *sa, UINT dim, LONG *lbound, L
     return S_OK;
 }

-static HRESULT get_safearray_bounds(SAFEARRAY *sa, LONG *lbound, LONG *elems)
+HRESULT get_safearray_bounds(SAFEARRAY *sa, LONG *lbound, LONG *elems)
 {
     UINT dims;

diff --git a/dlls/uiautomationcore/uia_com_client.c b/dlls/uiautomationcore/uia_com_client.c
index b6f308275bb..e78fc4ee416 100644
--- a/dlls/uiautomationcore/uia_com_client.c
+++ b/dlls/uiautomationcore/uia_com_client.c
@@ -1373,8 +1373,48 @@ static HRESULT WINAPI uia_iface_IntNativeArrayToSafeArray(IUIAutomation6 *iface,
 static HRESULT WINAPI uia_iface_IntSafeArrayToNativeArray(IUIAutomation6 *iface, SAFEARRAY *sa, int **out_arr,
         int *out_arr_count)
 {
-    FIXME("%p, %p, %p, %p: stub\n", iface, sa, out_arr, out_arr_count);
-    return E_NOTIMPL;
+    LONG lbound, elems;
+    int *arr, *sa_arr;
+    VARTYPE vt;
+    HRESULT hr;
+
+    TRACE("%p, %p, %p, %p\n", iface, sa, out_arr, out_arr_count);
+
+    if (!sa || !out_arr || !out_arr_count)
+        return E_INVALIDARG;
+
+    *out_arr = NULL;
+    hr = SafeArrayGetVartype(sa, &vt);
+    if (FAILED(hr))
+        return hr;
+
+    if (vt != VT_I4)
+        return E_INVALIDARG;
+
+    hr = get_safearray_bounds(sa, &lbound, &elems);
+    if (FAILED(hr))
+        return hr;
+
+    if (!(arr = CoTaskMemAlloc(elems * sizeof(*arr))))
+        return E_OUTOFMEMORY;
+
+    hr = SafeArrayAccessData(sa, (void **)&sa_arr);
+    if (FAILED(hr))
+        goto exit;
+
+    memcpy(arr, sa_arr, sizeof(*arr) * elems);
+    hr = SafeArrayUnaccessData(sa);
+    if (FAILED(hr))
+        goto exit;
+
+    *out_arr = arr;
+    *out_arr_count = elems;
+
+exit:
+    if (FAILED(hr))
+        CoTaskMemFree(arr);
+
+    return hr;
 }

static HRESULT WINAPI uia_iface_RectToVariant(IUIAutomation6 *iface, RECT rect, VARIANT *out_var)
diff --git a/dlls/uiautomationcore/uia_private.h b/dlls/uiautomationcore/uia_private.h
index 157ae3583f8..2c6e41eac6d 100644
--- a/dlls/uiautomationcore/uia_private.h
+++ b/dlls/uiautomationcore/uia_private.h
@@ -99,6 +99,7 @@ static inline void variant_init_bool(VARIANT *v, BOOL val)
 }

/* uia_client.c */
+HRESULT get_safearray_bounds(SAFEARRAY *sa, LONG *lbound, LONG *elems) DECLSPEC_HIDDEN;
 int uia_compare_safearrays(SAFEARRAY *sa1, SAFEARRAY *sa2, int prop_type) DECLSPEC_HIDDEN;
 int get_node_provider_type_at_idx(struct uia_node *node, int idx) DECLSPEC_HIDDEN;
 HRESULT create_uia_node_from_elprov(IRawElementProviderSimple *elprov, HUIANODE *out_node,