Windows QPA: fix tree item discovery through UI Automation

This change reverts a workaround for a compatibility issue with
a Windows utility, which is no longer necessary with Qt6 and was
in some cases preventing accessibility tools from discovering
tree items.

This reverts commit 1c55a6caf1fc2b8a73a9a756bcf6894c5d4e4398.

Fixes: QTBUG-105814
Pick-to: 6.4 6.3 6.2
Change-Id: Id464da49704b6953affca2fa40acc03f1ffd05ac
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

1 files changed, 11 insertions, 19 deletions

diff --git a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
index 2d5d91a7ea..e75f9a3839 100644
--- a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
+++ b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
@@ -699,26 +699,18 @@ HRESULT QWindowsUiaMainProvider::ElementProviderFromPoint(double x, double y, IR
     QPoint point;
     nativeUiaPointToPoint(uiaPoint, window, &point);
 
-    if (auto targetacc = accessible->childAt(point.x(), point.y())) {
-        auto acc = accessible->childAt(point.x(), point.y());
-        // Reject the cases where childAt() returns a different instance in each call for the same
-        // element (e.g., QAccessibleTree), as it causes an endless loop with Youdao Dictionary installed.
-        if (targetacc == acc) {
-            // Controls can be embedded within grouping elements. By default returns the innermost control.
-            while (acc) {
-                targetacc = acc;
-                // For accessibility tools it may be better to return the text element instead of its subcomponents.
-                if (targetacc->textInterface()) break;
-                acc = targetacc->childAt(point.x(), point.y());
-                if (acc != targetacc->childAt(point.x(), point.y())) {
-                    qCDebug(lcQpaUiAutomation) << "Non-unique childAt() for" << targetacc;
-                    break;
-                }
-            }
-            *pRetVal = providerForAccessible(targetacc);
-        } else {
-            qCDebug(lcQpaUiAutomation) << "Non-unique childAt() for" << accessible;
+    QAccessibleInterface *targetacc = accessible->childAt(point.x(), point.y());
+
+    if (targetacc) {
+        QAccessibleInterface *acc = targetacc;
+        // Controls can be embedded within grouping elements. By default returns the innermost control.
+        while (acc) {
+            targetacc = acc;
+            // For accessibility tools it may be better to return the text element instead of its subcomponents.
+            if (targetacc->textInterface()) break;
+            acc = acc->childAt(point.x(), point.y());
         }
+        *pRetVal = providerForAccessible(targetacc);
     }
     return S_OK;
 }