uiautomationcore: Add support for translating EVENT_OBJECT_FOCUS for native MSAA IAccessibles.

dlls/uiautomationcore/tests/uiautomation.c

@@ -582,6 +582,18 @@ static struct Accessible
         (acc)->expect_ ## method = (acc)->called_ ## method = 0; \
     }while(0)
 
+#define CHECK_ACC_METHOD_CALLED_AT_LEAST(acc, method, num) \
+    do { \
+        ok((acc)->called_ ## method >= num, "expected %s_" #method " at least %d time(s) (got %d)\n", (acc)->interface_name, num, (acc)->called_ ## method); \
+        (acc)->expect_ ## method = (acc)->called_ ## method = 0; \
+    }while(0)
+
+#define CHECK_ACC_METHOD_CALLED_AT_MOST(acc, method, num) \
+    do { \
+        ok((acc)->called_ ## method <= num, "expected %s_" #method " at most %d time(s) (got %d)\n", (acc)->interface_name, num, (acc)->called_ ## method); \
+        (acc)->expect_ ## method = (acc)->called_ ## method = 0; \
+    }while(0)
+
 static inline struct Accessible* impl_from_Accessible(IAccessible *iface)
 {
     return CONTAINING_RECORD(iface, struct Accessible, IAccessible_iface);
@@ -15774,6 +15786,163 @@ static void test_uia_com_focus_change_event_handler_win_event_handling(IUIAutoma
     CHECK_CALLED(uia_com_event_callback);
     CHECK_CALLED(uia_event_callback);
 
+    /*
+     * Windows 7 has quirky behavior around MSAA proxy creation, skip tests.
+     */
+    if (!UiaLookupId(AutomationIdentifierType_Property, &OptimizeForVisualContent_Property_GUID))
+    {
+        win_skip("Skipping focus MSAA proxy tests for Win7\n");
+        goto exit;
+    }
+
+    /*
+     * Creates an MSAA proxy, raises event on that.
+     */
+    prov_root = NULL;
+    set_accessible_props(&Accessible, ROLE_SYSTEM_CLIENT, STATE_SYSTEM_FOCUSED, 0, L"acc_name", 0, 0, 0, 0);
+    Accessible.ow_hwnd = test_hwnd;
+    Accessible.focus_child_id = CHILDID_SELF;
+    acc_client = &Accessible.IAccessible_iface;
+
+    init_node_provider_desc(&exp_node_desc, GetCurrentProcessId(), test_hwnd);
+    add_provider_desc(&exp_node_desc, L"Hwnd", L"Provider_hwnd2", FALSE);
+    add_provider_desc(&exp_node_desc, L"Nonclient", L"Provider_nc2", FALSE);
+    add_provider_desc(&exp_node_desc, L"Main", NULL, TRUE); /* MSAA Proxy provider. */
+
+    set_multi_event_data(&exp_node_desc);
+    set_com_event_data(&exp_node_desc);
+
+    set_uia_hwnd_expects(0, 1, 1, 4, 4); /* Win11 sends 4 WM_GETOBJECT messages, normally only 2. */
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible, QI_IAccIdentity, 3);
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible, get_accParent, 3);
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accFocus);
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accState);
+    NotifyWinEvent(EVENT_OBJECT_FOCUS, test_hwnd, OBJID_CLIENT, CHILDID_SELF);
+    ok(msg_wait_for_all_events(event_handles, 2, 5000) != WAIT_TIMEOUT, "Wait for event_handle(s) timed out.\n");
+    if (wait_for_clientside_callbacks(2000)) trace("Kept getting callbacks up until timeout\n");
+    check_uia_hwnd_expects_at_least(0, FALSE, 1, FALSE, 1, FALSE, 1, FALSE, 1, FALSE);
+    todo_wine CHECK_ACC_METHOD_CALLED(&Accessible, QI_IAccIdentity);
+    todo_wine CHECK_ACC_METHOD_CALLED(&Accessible, get_accParent);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accFocus);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accState);
+    CHECK_CALLED(uia_com_event_callback);
+    CHECK_CALLED(uia_event_callback);
+
+    /*
+     * Return Accessible_child2 from get_accFocus.
+     */
+    set_accessible_props(&Accessible, ROLE_SYSTEM_CLIENT, STATE_SYSTEM_FOCUSED, 0, L"acc_name", 0, 0, 0, 0);
+    Accessible.focus_child_id = 4; /* 4 gets us Accessible_child2. */
+    set_accessible_props(&Accessible_child2, ROLE_SYSTEM_DOCUMENT, STATE_SYSTEM_FOCUSED, 0, L"acc_child2", 0, 0, 0, 0);
+
+    init_node_provider_desc(&exp_node_desc, GetCurrentProcessId(), NULL);
+    add_provider_desc(&exp_node_desc, L"Main", NULL, TRUE); /* MSAA Proxy provider. */
+
+    set_multi_event_data(&exp_node_desc);
+    set_com_event_data(&exp_node_desc);
+    set_uia_hwnd_expects(0, 0, 0, 2, 3); /* Win11 sends 2/3 WM_GETOBJECT messages, normally only 1/2. */
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible, QI_IAccIdentity, 4); /* Only done 4 times on Win11, normally 3. */
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible, get_accParent, 3); /* Only done 3 times on Win11, normally 2. */
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accFocus);
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accChild);
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accRole);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, QI_IAccIdentity);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, get_accFocus);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, get_accRole);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, accNavigate); /* Wine only, Windows doesn't pass this through the DA wrapper. */
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible_child2, get_accParent, 2);
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible_child2, get_accState, 2);
+    NotifyWinEvent(EVENT_OBJECT_FOCUS, test_hwnd, OBJID_CLIENT, CHILDID_SELF);
+    ok(msg_wait_for_all_events(event_handles, 2, 5000) != WAIT_TIMEOUT, "Wait for event_handle(s) timed out.\n");
+    if (wait_for_clientside_callbacks(2000)) trace("Kept getting callbacks up until timeout\n");
+    check_uia_hwnd_expects_at_least(0, FALSE, 0, FALSE, 0, FALSE, 1, FALSE, 2, FALSE);
+    todo_wine CHECK_ACC_METHOD_CALLED_AT_LEAST(&Accessible, QI_IAccIdentity, 3);
+    todo_wine CHECK_ACC_METHOD_CALLED_AT_LEAST(&Accessible, get_accParent, 2);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accFocus);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accChild);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accRole);
+    todo_wine CHECK_ACC_METHOD_CALLED(&Accessible_child2, QI_IAccIdentity);
+    CHECK_ACC_METHOD_CALLED(&Accessible_child2, get_accFocus);
+    CHECK_ACC_METHOD_CALLED(&Accessible_child2, get_accRole);
+    CHECK_ACC_METHOD_CALLED_MULTI(&Accessible_child2, get_accParent, 2);
+    CHECK_ACC_METHOD_CALLED_MULTI(&Accessible_child2, get_accState, 2);
+    CHECK_ACC_METHOD_CALLED_AT_MOST(&Accessible_child2, accNavigate, 1);
+    CHECK_CALLED(uia_com_event_callback);
+    CHECK_CALLED(uia_event_callback);
+
+    /*
+     * accFocus returns Accessible_child2, however it has
+     * STATE_SYSTEM_INVISIBLE set. Falls back to Accessible.
+     */
+    set_accessible_props(&Accessible_child2, ROLE_SYSTEM_DOCUMENT, STATE_SYSTEM_INVISIBLE | STATE_SYSTEM_FOCUSED, 0, L"acc_child2", 0, 0, 0, 0);
+    set_accessible_props(&Accessible, ROLE_SYSTEM_CLIENT, STATE_SYSTEM_FOCUSED, 0, L"acc_name", 0, 0, 0, 0);
+
+    init_node_provider_desc(&exp_node_desc, GetCurrentProcessId(), test_hwnd);
+    add_provider_desc(&exp_node_desc, L"Hwnd", L"Provider_hwnd2", FALSE);
+    add_provider_desc(&exp_node_desc, L"Nonclient", L"Provider_nc2", FALSE);
+    add_provider_desc(&exp_node_desc, L"Main", NULL, TRUE); /* MSAA Proxy provider. */
+
+    set_multi_event_data(&exp_node_desc);
+    set_com_event_data(&exp_node_desc);
+    set_uia_hwnd_expects(0, 1, 1, 4, 4); /* Win11 sends 4 WM_GETOBJECT messages, normally only 2. */
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible, QI_IAccIdentity, 4); /* Only done 4 times on Win11, normally 2. */
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible, get_accParent, 3); /* Only done 3 times on Win11, normally 1. */
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accFocus);
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accChild);
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accState);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, accNavigate); /* Wine only, Windows doesn't pass this through the DA wrapper. */
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, QI_IAccIdentity);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, get_accParent);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, get_accState);
+    NotifyWinEvent(EVENT_OBJECT_FOCUS, test_hwnd, OBJID_CLIENT, CHILDID_SELF);
+    ok(msg_wait_for_all_events(event_handles, 2, 5000) != WAIT_TIMEOUT, "Wait for event_handle(s) timed out.\n");
+    if (wait_for_clientside_callbacks(2000)) trace("Kept getting callbacks up until timeout\n");
+    check_uia_hwnd_expects_at_least(0, FALSE, 1, FALSE, 1, FALSE, 1, FALSE, 1, FALSE);
+    todo_wine CHECK_ACC_METHOD_CALLED_AT_LEAST(&Accessible, QI_IAccIdentity, 2);
+    todo_wine CHECK_ACC_METHOD_CALLED(&Accessible, get_accParent);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accFocus);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accChild);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accState);
+    todo_wine CHECK_ACC_METHOD_CALLED(&Accessible_child2, QI_IAccIdentity);
+    CHECK_ACC_METHOD_CALLED(&Accessible_child2, get_accParent);
+    CHECK_ACC_METHOD_CALLED(&Accessible_child2, get_accState);
+    CHECK_ACC_METHOD_CALLED_AT_MOST(&Accessible_child2, accNavigate, 1);
+    CHECK_CALLED(uia_com_event_callback);
+    CHECK_CALLED(uia_event_callback);
+
+    /*
+     * Get Accessible_child2 by raising an event with its child ID directly.
+     * It will have its get_accFocus method called.
+     */
+    init_node_provider_desc(&exp_node_desc, GetCurrentProcessId(), NULL);
+    add_provider_desc(&exp_node_desc, L"Main", NULL, TRUE); /* MSAA Proxy provider. */
+
+    set_multi_event_data(&exp_node_desc);
+    set_com_event_data(&exp_node_desc);
+    set_uia_hwnd_expects(0, 0, 0, 2, 2); /* Win11 sends 2/2 WM_GETOBJECT messages, normally only 1/1. */
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible, QI_IAccIdentity, 2); /* Only done 2 times on Win11, normally 1. */
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accParent); /* Only done on Win11. */
+    SET_ACC_METHOD_EXPECT(&Accessible, get_accChild);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, QI_IAccIdentity);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, get_accFocus);
+    SET_ACC_METHOD_EXPECT(&Accessible_child2, get_accState);
+    SET_ACC_METHOD_EXPECT_MULTI(&Accessible_child2, get_accParent, 2);
+    NotifyWinEvent(EVENT_OBJECT_FOCUS, test_hwnd, OBJID_CLIENT, 4);
+    ok(msg_wait_for_all_events(event_handles, 2, 5000) != WAIT_TIMEOUT, "Wait for event_handle(s) timed out.\n");
+    if (wait_for_clientside_callbacks(2000)) trace("Kept getting callbacks up until timeout\n");
+    check_uia_hwnd_expects_at_least(0, FALSE, 0, FALSE, 0, FALSE, 1, FALSE, 1, FALSE);
+    CHECK_ACC_METHOD_CALLED_AT_MOST(&Accessible, get_accParent, 1); /* Only done on Win11. */
+    todo_wine CHECK_ACC_METHOD_CALLED(&Accessible, QI_IAccIdentity);
+    CHECK_ACC_METHOD_CALLED(&Accessible, get_accChild);
+    todo_wine CHECK_ACC_METHOD_CALLED(&Accessible_child2, QI_IAccIdentity);
+    CHECK_ACC_METHOD_CALLED(&Accessible_child2, get_accFocus);
+    CHECK_ACC_METHOD_CALLED(&Accessible_child2, get_accState);
+    CHECK_ACC_METHOD_CALLED_AT_MOST(&Accessible_child2, get_accParent, 2);
+    CHECK_CALLED(uia_com_event_callback);
+    CHECK_CALLED(uia_event_callback);
+    acc_client = NULL;
+
+exit:
     set_uia_hwnd_expects(0, 1, 1, 0, 0);
     hr = IUIAutomation_RemoveFocusChangedEventHandler(uia_iface,
             &FocusChangedHandler.IUIAutomationFocusChangedEventHandler_iface);

dlls/uiautomationcore/uia_com_client.c

@@ -1079,6 +1079,78 @@ static void uia_com_focus_win_event_handler(HUIANODE node, HWND hwnd, struct uia
     VariantClear(&v);
 }
 
+static HRESULT uia_com_focus_win_event_msaa_callback(struct uia_event *event, void *user_data)
+{
+    struct uia_event_args args = { { EventArgsType_Simple, UIA_AutomationFocusChangedEventId }, 0 };
+    HUIANODE node = (HUIANODE)user_data;
+
+    /* Only match desktop events. */
+    if (!event->desktop_subtree_event)
+        return S_OK;
+
+    return uia_event_invoke(node, NULL, &args, event);
+}
+
+static void uia_com_focus_win_event_msaa_handler(HWND hwnd, LONG child_id)
+{
+    IRawElementProviderFragmentRoot *elroot;
+    IRawElementProviderFragment *elfrag;
+    IRawElementProviderSimple *elprov;
+    HRESULT hr;
+    VARIANT v;
+
+    hr = create_msaa_provider_from_hwnd(hwnd, child_id, &elprov);
+    if (FAILED(hr))
+    {
+        WARN("create_msaa_provider_from_hwnd failed with hr %#lx\n", hr);
+        return;
+    }
+
+    hr = IRawElementProviderSimple_QueryInterface(elprov, &IID_IRawElementProviderFragmentRoot, (void **)&elroot);
+    if (FAILED(hr))
+        goto exit;
+
+    hr = IRawElementProviderFragmentRoot_GetFocus(elroot, &elfrag);
+    IRawElementProviderFragmentRoot_Release(elroot);
+    if (FAILED(hr))
+        goto exit;
+
+    if (elfrag)
+    {
+        IRawElementProviderSimple *elprov2;
+
+        hr = IRawElementProviderFragment_QueryInterface(elfrag, &IID_IRawElementProviderSimple, (void **)&elprov2);
+        IRawElementProviderFragment_Release(elfrag);
+        if (FAILED(hr))
+            goto exit;
+
+        IRawElementProviderSimple_Release(elprov);
+        elprov = elprov2;
+    }
+
+    VariantInit(&v);
+    hr = IRawElementProviderSimple_GetPropertyValue(elprov, UIA_HasKeyboardFocusPropertyId, &v);
+    if (FAILED(hr))
+        goto exit;
+
+    if (V_VT(&v) == VT_BOOL && V_BOOL(&v) == VARIANT_TRUE)
+    {
+        HUIANODE node;
+
+        hr = create_uia_node_from_elprov(elprov, &node, TRUE, 0);
+        if (SUCCEEDED(hr))
+        {
+            hr = uia_event_for_each(UIA_AutomationFocusChangedEventId, uia_com_focus_win_event_msaa_callback, (void *)node, TRUE);
+            if (FAILED(hr))
+                WARN("uia_event_for_each failed with hr %#lx\n", hr);
+            UiaNodeRelease(node);
+        }
+    }
+
+exit:
+    IRawElementProviderSimple_Release(elprov);
+}
+
 HRESULT uia_com_win_event_callback(DWORD event_id, HWND hwnd, LONG obj_id, LONG child_id, DWORD thread_id, DWORD event_time)
 {
     LONG handler_count;
@@ -1168,6 +1240,8 @@ HRESULT uia_com_win_event_callback(DWORD event_id, HWND hwnd, LONG obj_id, LONG
             hr = create_uia_node_from_hwnd(hwnd, &node, NODE_FLAG_IGNORE_CLIENTSIDE_HWND_PROVS);
             if (SUCCEEDED(hr))
                 uia_com_focus_win_event_handler(node, hwnd, event_id_map);
+            else
+                uia_com_focus_win_event_msaa_handler(hwnd, child_id);
 
             UiaNodeRelease(node);
         }

dlls/uiautomationcore/uia_event.c

@@ -587,8 +587,6 @@ static struct uia_queue_event *uia_event_queue_pop(struct list *event_queue)
     return queue_event;
 }
 
-static HRESULT uia_event_invoke(HUIANODE node, HUIANODE nav_start_node, struct uia_event_args *args,
-        struct uia_event *event);
 static HRESULT uia_raise_clientside_event(struct uia_queue_uia_event *event)
 {
     HUIANODE node, nav_start_node;
@@ -676,7 +674,7 @@ static BOOL uia_win_event_hwnd_map_contains_ancestors(struct rb_tree *hwnd_map,
     return FALSE;
 }
 
-static HRESULT create_msaa_provider_from_hwnd(HWND hwnd, int in_child_id, IRawElementProviderSimple **ret_elprov)
+HRESULT create_msaa_provider_from_hwnd(HWND hwnd, int in_child_id, IRawElementProviderSimple **ret_elprov)
 {
     IRawElementProviderSimple *elprov;
     IAccessible *acc;
@@ -1733,7 +1731,7 @@ HRESULT WINAPI UiaRemoveEvent(HUIAEVENT huiaevent)
     return S_OK;
 }
 
-static HRESULT uia_event_invoke(HUIANODE node, HUIANODE nav_start_node, struct uia_event_args *args, struct uia_event *event)
+HRESULT uia_event_invoke(HUIANODE node, HUIANODE nav_start_node, struct uia_event_args *args, struct uia_event *event)
 {
     HRESULT hr = S_OK;
 

dlls/uiautomationcore/uia_private.h

@@ -241,6 +241,7 @@ HRESULT uia_event_add_win_event_hwnd(struct uia_event *event, HWND hwnd) DECLSPE
 HRESULT uia_event_for_each(int event_id, UiaWineEventForEachCallback *callback, void *user_data,
         BOOL clientside_only) DECLSPEC_HIDDEN;
 BOOL uia_clientside_event_start_event_thread(struct uia_event *event) DECLSPEC_HIDDEN;
+HRESULT create_msaa_provider_from_hwnd(HWND hwnd, int in_child_id, IRawElementProviderSimple **ret_elprov) DECLSPEC_HIDDEN;
 HRESULT create_serverside_uia_event(struct uia_event **out_event, LONG process_id, LONG event_cookie) DECLSPEC_HIDDEN;
 HRESULT uia_event_add_provider_event_adviser(IRawElementProviderAdviseEvents *advise_events,
         struct uia_event *event) DECLSPEC_HIDDEN;
@@ -249,6 +250,8 @@ HRESULT uia_event_advise_node(struct uia_event *event, HUIANODE node) DECLSPEC_H
 HRESULT uia_add_clientside_event(HUIANODE huianode, EVENTID event_id, enum TreeScope scope, PROPERTYID *prop_ids,
         int prop_ids_count, struct UiaCacheRequest *cache_req, SAFEARRAY *rt_id, UiaWineEventCallback *cback,
         void *cback_data, HUIAEVENT *huiaevent) DECLSPEC_HIDDEN;
+HRESULT uia_event_invoke(HUIANODE node, HUIANODE nav_start_node, struct uia_event_args *args,
+        struct uia_event *event) DECLSPEC_HIDDEN;
 HRESULT uia_event_check_node_within_event_scope(struct uia_event *event, HUIANODE node, SAFEARRAY *rt_id,
         HUIANODE *clientside_nav_node_out) DECLSPEC_HIDDEN;