Windows QPA: send UIA focus notification after window activation

After a Qt application window was opened, and focus was moved to
another window, and then back to the Qt application window, NVDA
would only announce the window name, but not the widget focused
within the window. This patch makes Qt send a notification focus
for the focused widget after a window activation notification.

Fixes: QTBUG-105735
Pick-to: 6.4 6.3 6.2
Change-Id: I3426b3613ae546de0ce363f9acc5d6776c99a8aa
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
index e75f9a3839..03cac60e08 100644
--- a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
+++ b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
@@ -103,6 +103,10 @@ void QWindowsUiaMainProvider::notifyStateChange(QAccessibleStateChangeEvent *eve
                 if (QWindowsUiaMainProvider *provider = providerForAccessible(accessible)) {
                     if (accessible->state().active) {
                         QWindowsUiaWrapper::instance()->raiseAutomationEvent(provider, UIA_Window_WindowOpenedEventId);
+                        if (QAccessibleInterface *focused = accessible->focusChild()) {
+                            if (QWindowsUiaMainProvider *focusedProvider = providerForAccessible(focused))
+                                QWindowsUiaWrapper::instance()->raiseAutomationEvent(focusedProvider, UIA_AutomationFocusChangedEventId);
+                        }
                     } else {
                         QWindowsUiaWrapper::instance()->raiseAutomationEvent(provider, UIA_Window_WindowClosedEventId);
                     }